lib/Geocode.php

   1 <?php
   2         require_once(CONST_BasePath.'/lib/PlaceLookup.php');
   3         require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
   4
   5         class Geocode
   6         {
   7                 protected $oDB;
   8
   9                 protected $aLangPrefOrder = array();
  10
  11                 protected $bIncludeAddressDetails = false;
  12                 protected $bIncludeExtraTags = false;
  13                 protected $bIncludeNameDetails = false;
  14
  15                 protected $bIncludePolygonAsPoints = false;
  16                 protected $bIncludePolygonAsText = false;
  17                 protected $bIncludePolygonAsGeoJSON = false;
  18                 protected $bIncludePolygonAsKML = false;
  19                 protected $bIncludePolygonAsSVG = false;
  20                 protected $fPolygonSimplificationThreshold = 0.0;
  21
  22                 protected $aExcludePlaceIDs = array();
  23                 protected $bDeDupe = true;
  24                 protected $bReverseInPlan = false;
  25
  26                 protected $iLimit = 20;
  27                 protected $iFinalLimit = 10;
  28                 protected $iOffset = 0;
  29                 protected $bFallback = false;
  30
  31                 protected $aCountryCodes = false;
  32                 protected $aNearPoint = false;
  33
  34                 protected $bBoundedSearch = false;
  35                 protected $aViewBox = false;
  36                 protected $sViewboxCentreSQL = false;
  37                 protected $sViewboxSmallSQL = false;
  38                 protected $sViewboxLargeSQL = false;
  39
  40                 protected $iMaxRank = 20;
  41                 protected $iMinAddressRank = 0;
  42                 protected $iMaxAddressRank = 30;
  43                 protected $aAddressRankList = array();
  44                 protected $exactMatchCache = array();
  45
  46                 protected $sAllowedTypesSQLList = false;
  47
  48                 protected $sQuery = false;
  49                 protected $aStructuredQuery = false;
  50
  51                 function Geocode(&$oDB)
  52                 {
  53                         $this->oDB =& $oDB;
  54                 }
  55
  56                 function setReverseInPlan($bReverse)
  57                 {
  58                         $this->bReverseInPlan = $bReverse;
  59                 }
  60
  61                 function setLanguagePreference($aLangPref)
  62                 {
  63                         $this->aLangPrefOrder = $aLangPref;
  64                 }
  65
  66                 function getIncludeAddressDetails()
  67                 {
  68                         return $this->bIncludeAddressDetails;
  69                 }
  70
  71                 function getIncludeExtraTags()
  72                 {
  73                         return $this->bIncludeExtraTags;
  74                 }
  75
  76                 function getIncludeNameDetails()
  77                 {
  78                         return $this->bIncludeNameDetails;
  79                 }
  80
  81                 function setIncludePolygonAsPoints($b = true)
  82                 {
  83                         $this->bIncludePolygonAsPoints = $b;
  84                 }
  85
  86                 function setIncludePolygonAsText($b = true)
  87                 {
  88                         $this->bIncludePolygonAsText = $b;
  89                 }
  90
  91                 function setIncludePolygonAsGeoJSON($b = true)
  92                 {
  93                         $this->bIncludePolygonAsGeoJSON = $b;
  94                 }
  95
  96                 function setIncludePolygonAsKML($b = true)
  97                 {
  98                         $this->bIncludePolygonAsKML = $b;
  99                 }
 100
 101                 function setIncludePolygonAsSVG($b = true)
 102                 {
 103                         $this->bIncludePolygonAsSVG = $b;
 104                 }
 105
 106                 function setPolygonSimplificationThreshold($f)
 107                 {
 108                         $this->fPolygonSimplificationThreshold = $f;
 109                 }
 110
 111                 function setLimit($iLimit = 10)
 112                 {
 113                         if ($iLimit > 50) $iLimit = 50;
 114                         if ($iLimit < 1) $iLimit = 1;
 115
 116                         $this->iFinalLimit = $iLimit;
 117                         $this->iLimit = $iLimit + min($iLimit, 10);
 118                 }
 119
 120                 function getExcludedPlaceIDs()
 121                 {
 122                         return $this->aExcludePlaceIDs;
 123                 }
 124
 125                 function getViewBoxString()
 126                 {
 127                         if (!$this->aViewBox) return null;
 128                         return $this->aViewBox[0].','.$this->aViewBox[3].','.$this->aViewBox[2].','.$this->aViewBox[1];
 129                 }
 130
 131                 function setFeatureType($sFeatureType)
 132                 {
 133                         switch($sFeatureType)
 134                         {
 135                         case 'country':
 136                                 $this->setRankRange(4, 4);
 137                                 break;
 138                         case 'state':
 139                                 $this->setRankRange(8, 8);
 140                                 break;
 141                         case 'city':
 142                                 $this->setRankRange(14, 16);
 143                                 break;
 144                         case 'settlement':
 145                                 $this->setRankRange(8, 20);
 146                                 break;
 147                         }
 148                 }
 149
 150                 function setRankRange($iMin, $iMax)
 151                 {
 152                         $this->iMinAddressRank = $iMin;
 153                         $this->iMaxAddressRank = $iMax;
 154                 }
 155
 156                 function setRoute($aRoutePoints, $fRouteWidth)
 157                 {
 158                         $this->aViewBox = false;
 159
 160                         $this->sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 161                         $sSep = '';
 162                         foreach($this->aRoutePoints as $aPoint)
 163                         {
 164                                 $fPoint = (float)$aPoint;
 165                                 $this->sViewboxCentreSQL .= $sSep.$fPoint;
 166                                 $sSep = ($sSep == ' ') ? ',' : ' ';
 167                         }
 168                         $this->sViewboxCentreSQL .= ")'::geometry,4326)";
 169
 170                         $this->sViewboxSmallSQL = 'st_buffer('.$this->sViewboxCentreSQL;
 171                         $this->sViewboxSmallSQL .= ','.($fRouteWidth/69).')';
 172
 173                         $this->sViewboxLargeSQL = 'st_buffer('.$this->sViewboxCentreSQL;
 174                         $this->sViewboxLargeSQL .= ','.($fRouteWidth/30).')';
 175                 }
 176
 177                 function setViewbox($aViewbox)
 178                 {
 179                         $this->aViewBox = array_map('floatval', $aViewbox);
 180
 181                         $fHeight = $this->aViewBox[0] - $this->aViewBox[2];
 182                         $fWidth = $this->aViewBox[1] - $this->aViewBox[3];
 183                         $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 184                         $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 185                         $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 186                         $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 187
 188                         $this->sViewboxCentreSQL = false;
 189                         $this->sViewboxSmallSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".$this->aViewBox[0].",".$this->aViewBox[1]."),ST_Point(".$this->aViewBox[2].",".$this->aViewBox[3].")),4326)";
 190                         $this->sViewboxLargeSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".$aBigViewBox[0].",".$aBigViewBox[1]."),ST_Point(".$aBigViewBox[2].",".$aBigViewBox[3].")),4326)";
 191                 }
 192
 193                 function setNearPoint($aNearPoint, $fRadiusDeg = 0.1)
 194                 {
 195                         $this->aNearPoint = array((float)$aNearPoint[0], (float)$aNearPoint[1], (float)$fRadiusDeg);
 196                 }
 197
 198                 function setQuery($sQueryString)
 199                 {
 200                         $this->sQuery = $sQueryString;
 201                         $this->aStructuredQuery = false;
 202                 }
 203
 204                 function getQueryString()
 205                 {
 206                         return $this->sQuery;
 207                 }
 208
 209
 210                 function loadParamArray($oParams)
 211                 {
 212                         $this->bIncludeAddressDetails = $oParams->getBool('addressdetails',
 213                                                                           $this->bIncludeAddressDetails);
 214                         $this->bIncludeExtraTags = $oParams->getBool('extratags',
 215                                                                      $this->bIncludeExtraTags);
 216                         $this->bIncludeNameDetails = $oParams->getBool('namedetails',
 217                                                                        $this->bIncludeNameDetails);
 218
 219                         $this->bBoundedSearch = $oParams->getBool('bounded', $this->bBoundedSearch);
 220                         $this->bDeDupe = $oParams->getBool('dedupe', $this->bDeDupe);
 221
 222                         $this->setLimit($oParams->getInt('limit', $this->iFinalLimit));
 223                         $this->iOffset = $oParams->getInt('offset', $this->iOffset);
 224
 225                         $this->bFallback = $oParams->getBool('fallback', $this->bFallback);
 226
 227                         // List of excluded Place IDs - used for more acurate pageing
 228                         $sExcluded = $oParams->getStringList('exclude_place_ids');
 229                         if ($sExcluded)
 230                         {
 231                                 foreach($sExcluded as $iExcludedPlaceID)
 232                                 {
 233                                         $iExcludedPlaceID = (int)$iExcludedPlaceID;
 234                                         if ($iExcludedPlaceID)
 235                                                 $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
 236                                 }
 237
 238                                 if (isset($aExcludePlaceIDs))
 239                                         $this->aExcludePlaceIDs = $aExcludePlaceIDs;
 240                         }
 241
 242                         // Only certain ranks of feature
 243                         $sFeatureType = $oParams->getString('featureType');
 244                         if (!$sFeatureType) $sFeatureType = $oParams->getString('featuretype');
 245                         if ($sFeatureType) $this->setFeatureType($sFeatureType);
 246
 247                         // Country code list
 248                         $sCountries = $oParams->getStringList('countrycodes');
 249                         if ($sCountries)
 250                         {
 251                                 foreach($sCountries as $sCountryCode)
 252                                 {
 253                                         if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode))
 254                                         {
 255                                                 $aCountries[] = strtolower($sCountryCode);
 256                                         }
 257                                 }
 258                                 if (isset($aCountryCodes))
 259                                         $this->aCountryCodes = $aCountries;
 260                         }
 261
 262                         $aViewbox = $oParams->getStringList('viewboxlbrt');
 263                         if ($aViewbox)
 264                         {
 265                                 $this->setViewbox($aViewbox);
 266                         }
 267                         else
 268                         {
 269                                 $aViewbox = $oParams->getStringList('viewbox');
 270                                 if ($aViewbox)
 271                                 {
 272                                         $this->setViewBox(array($aViewbox[0], $aViewbox[3],
 273                                                                 $aViewbox[2], $aViewbox[1]));
 274                                 }
 275                                 else
 276                                 {
 277                                         $aRoute = $oParams->getStringList('route');
 278                                         $fRouteWidth = $oParams->getFloat('routewidth');
 279                                         if ($aRoute && $fRouteWidth)
 280                                         {
 281                                                 $this->setRoute($aRoute, $fRouteWidth);
 282                                         }
 283                                 }
 284                         }
 285                 }
 286
 287                 function setQueryFromParams($oParams)
 288                 {
 289                         // Search query
 290                         $sQuery = $oParams->getString('q');
 291                         if (!$sQuery)
 292                         {
 293                                 $this->setStructuredQuery($oParams->getString('amenity'),
 294                                                           $oParams->getString('street'),
 295                                                           $oParams->getString('city'),
 296                                                           $oParams->getString('county'),
 297                                                           $oParams->getString('state'),
 298                                                           $oParams->getString('country'),
 299                                                           $oParams->getString('postalcode'));
 300                                 $this->setReverseInPlan(false);
 301                         }
 302                         else
 303                         {
 304                                 $this->setQuery($sQuery);
 305                         }
 306                 }
 307
 308                 function loadStructuredAddressElement($sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 309                 {
 310                         $sValue = trim($sValue);
 311                         if (!$sValue) return false;
 312                         $this->aStructuredQuery[$sKey] = $sValue;
 313                         if ($this->iMinAddressRank == 0 && $this->iMaxAddressRank == 30)
 314                         {
 315                                 $this->iMinAddressRank = $iNewMinAddressRank;
 316                                 $this->iMaxAddressRank = $iNewMaxAddressRank;
 317                         }
 318                         if ($aItemListValues) $this->aAddressRankList = array_merge($this->aAddressRankList, $aItemListValues);
 319                         return true;
 320                 }
 321
 322                 function setStructuredQuery($sAmentiy = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 323                 {
 324                         $this->sQuery = false;
 325
 326                         // Reset
 327                         $this->iMinAddressRank = 0;
 328                         $this->iMaxAddressRank = 30;
 329                         $this->aAddressRankList = array();
 330
 331                         $this->aStructuredQuery = array();
 332                         $this->sAllowedTypesSQLList = '';
 333
 334                         $this->loadStructuredAddressElement($sAmentiy, 'amenity', 26, 30, false);
 335                         $this->loadStructuredAddressElement($sStreet, 'street', 26, 30, false);
 336                         $this->loadStructuredAddressElement($sCity, 'city', 14, 24, false);
 337                         $this->loadStructuredAddressElement($sCounty, 'county', 9, 13, false);
 338                         $this->loadStructuredAddressElement($sState, 'state', 8, 8, false);
 339                         $this->loadStructuredAddressElement($sPostalCode, 'postalcode' , 5, 11, array(5, 11));
 340                         $this->loadStructuredAddressElement($sCountry, 'country', 4, 4, false);
 341
 342                         if (sizeof($this->aStructuredQuery) > 0)
 343                         {
 344                                 $this->sQuery = join(', ', $this->aStructuredQuery);
 345                                 if ($this->iMaxAddressRank < 30)
 346                                 {
 347                                         $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 348                                 }
 349                         }
 350                 }
 351
 352                 function fallbackStructuredQuery()
 353                 {
 354                         if (!$this->aStructuredQuery) return false;
 355
 356                         $aParams = $this->aStructuredQuery;
 357
 358                         if (sizeof($aParams) == 1) return false;
 359
 360                         $aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
 361
 362                         foreach($aOrderToFallback as $sType)
 363                         {
 364                                 if (isset($aParams[$sType]))
 365                                 {
 366                                         unset($aParams[$sType]);
 367                                         $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 368                                         return true;
 369                                 }
 370                         }
 371
 372                         return false;
 373                 }
 374
 375                 function getDetails($aPlaceIDs)
 376                 {
 377                         //$aPlaceIDs is an array with key: placeID and value: tiger-housenumber, if found, else -1
 378                         if (sizeof($aPlaceIDs) == 0)  return array();
 379
 380                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 381
 382                         // Get the details for display (is this a redundant extra step?)
 383                         $sPlaceIDs = join(',', array_keys($aPlaceIDs));
 384
 385                         $sImportanceSQL = '';
 386                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxSmallSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 387                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxLargeSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 388
 389                         $sSQL = "select osm_type,osm_id,class,type,admin_level,rank_search,rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id, calculated_country_code as country_code,";
 390                         $sSQL .= "get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) as langaddress,";
 391                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
 392                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
 393                         if ($this->bIncludeExtraTags) $sSQL .= "hstore_to_json(extratags)::text as extra,";
 394                         if ($this->bIncludeNameDetails) $sSQL .= "hstore_to_json(name)::text as names,";
 395                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 396                         $sSQL .= $sImportanceSQL."coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
 397                         $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(CASE WHEN placex.rank_search < 28 THEN placex.place_id ELSE placex.parent_place_id END) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 398                         $sSQL .= "(extratags->'place') as extra_place ";
 399                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
 400                         $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 401                         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
 402                         if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
 403                         $sSQL .= ") ";
 404                         if ($this->sAllowedTypesSQLList) $sSQL .= "and placex.class in $this->sAllowedTypesSQLList ";
 405                         $sSQL .= "and linked_place_id is null ";
 406                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
 407                         if (!$this->bDeDupe) $sSQL .= ",place_id";
 408                         $sSQL .= ",langaddress ";
 409                         $sSQL .= ",placename ";
 410                         $sSQL .= ",ref ";
 411                         if ($this->bIncludeExtraTags) $sSQL .= ",extratags";
 412                         if ($this->bIncludeNameDetails) $sSQL .= ",name";
 413                         $sSQL .= ",extratags->'place' ";
 414
 415                         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank)
 416                         {
 417                                 //only Tiger housenumbers and interpolation lines need to be interpolated, because they are saved as lines
 418                                 // with start- and endnumber, the common osm housenumbers are usually saved as points
 419                                 $sHousenumbers = "";
 420                                 $i = 0;
 421                                 $length = count($aPlaceIDs);
 422                                 foreach($aPlaceIDs as $placeID => $housenumber)
 423                                 {
 424                                         $i++;
 425                                         $sHousenumbers .= "(".$placeID.", ".$housenumber.")";
 426                                         if($i<$length)
 427                                                 $sHousenumbers .= ", ";
 428                                 }
 429                                 if (CONST_Use_US_Tiger_Data)
 430                                 {
 431                                         //Tiger search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 432                                         $sSQL .= " union";
 433                                         $sSQL .= " select 'T' as osm_type, place_id as osm_id, 'place' as class, 'house' as type, null as admin_level, 30 as rank_search, 30 as rank_address, min(place_id) as place_id, min(parent_place_id) as parent_place_id, 'us' as country_code";
 434                                         $sSQL .= ", get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) as langaddress ";
 435                                         $sSQL .= ", null as placename";
 436                                         $sSQL .= ", null as ref";
 437                                         if ($this->bIncludeExtraTags) $sSQL .= ", null as extra";
 438                                         if ($this->bIncludeNameDetails) $sSQL .= ", null as names";
 439                                         $sSQL .= ", avg(st_x(centroid)) as lon, avg(st_y(centroid)) as lat,";
 440                                         $sSQL .= $sImportanceSQL."-1.15 as importance ";
 441                                         $sSQL .= ", (select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(blub.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance ";
 442                                         $sSQL .= ", null as extra_place ";
 443                                         $sSQL .= " from (select place_id";
 444                                         //interpolate the Tiger housenumbers here
 445                                         $sSQL .= ", ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) as centroid, parent_place_id, housenumber_for_place";
 446                                         $sSQL .= " from (location_property_tiger ";
 447                                         $sSQL .= " join (values ".$sHousenumbers.") as housenumbers(place_id, housenumber_for_place) using(place_id)) ";
 448                                         $sSQL .= " where housenumber_for_place>=0 and 30 between $this->iMinAddressRank and $this->iMaxAddressRank) as blub"; //postgres wants an alias here
 449                                         $sSQL .= " group by place_id, housenumber_for_place"; //is this group by really needed?, place_id + housenumber (in combination) are unique
 450                                         if (!$this->bDeDupe) $sSQL .= ", place_id ";
 451                                 }
 452                                 // osmline
 453                                 // interpolation line search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 454                                 $sSQL .= " union ";
 455                                 $sSQL .= "select 'W' as osm_type, place_id as osm_id, 'place' as class, 'house' as type, null as admin_level, 30 as rank_search, 30 as rank_address, min(place_id) as place_id, min(parent_place_id) as parent_place_id, calculated_country_code as country_code, ";
 456                                 $sSQL .= "get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) as langaddress, ";
 457                                 $sSQL .= "null as placename, ";
 458                                 $sSQL .= "null as ref, ";
 459                                 if ($this->bIncludeExtraTags) $sSQL .= "null as extra, ";
 460                                 if ($this->bIncludeNameDetails) $sSQL .= "null as names, ";
 461                                 $sSQL .= " avg(st_x(centroid)) as lon, avg(st_y(centroid)) as lat,";
 462                                 $sSQL .= $sImportanceSQL."-0.1 as importance, ";  // slightly smaller than the importance for normal houses with rank 30, which is 0
 463                                 $sSQL .= " (select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p";
 464                                 $sSQL .= " where s.place_id = min(blub.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance,";
 465                                 $sSQL .= " null as extra_place ";
 466                                 $sSQL .= " from (select place_id, calculated_country_code ";
 467                                 //interpolate the housenumbers here
 468                                 $sSQL .= ", CASE WHEN startnumber != endnumber THEN ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) ";
 469                                 $sSQL .= " ELSE ST_LineInterpolatePoint(linegeo, 0.5) END as centroid";
 470                                 $sSQL .= ", parent_place_id, housenumber_for_place ";
 471                                 $sSQL .= " from (location_property_osmline ";
 472                                 $sSQL .= " join (values ".$sHousenumbers.") as housenumbers(place_id, housenumber_for_place) using(place_id)) ";
 473                                 $sSQL .= " where housenumber_for_place>=0 and 30 between $this->iMinAddressRank and $this->iMaxAddressRank) as blub"; //postgres wants an alias here
 474                                 $sSQL .= " group by place_id, housenumber_for_place, calculated_country_code "; //is this group by really needed?, place_id + housenumber (in combination) are unique
 475                                 if (!$this->bDeDupe) $sSQL .= ", place_id ";
 476
 477                                 if (CONST_Use_Aux_Location_data)
 478                                 {
 479                                         $sSQL .= " union ";
 480                                         $sSQL .= "select 'L' as osm_type, place_id as osm_id, 'place' as class, 'house' as type, null as admin_level, 0 as rank_search, 0 as rank_address, min(place_id) as place_id, min(parent_place_id) as parent_place_id, 'us' as country_code, ";
 481                                         $sSQL .= "get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) as langaddress, ";
 482                                         $sSQL .= "null as placename, ";
 483                                         $sSQL .= "null as ref, ";
 484                                         if ($this->bIncludeExtraTags) $sSQL .= "null as extra, ";
 485                                         if ($this->bIncludeNameDetails) $sSQL .= "null as names, ";
 486                                         $sSQL .= "avg(ST_X(centroid)) as lon, avg(ST_Y(centroid)) as lat, ";
 487                                         $sSQL .= $sImportanceSQL."-1.10 as importance, ";
 488                                         $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_aux.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 489                                         $sSQL .= "null as extra_place ";
 490                                         $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
 491                                         $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 492                                         $sSQL .= "group by place_id";
 493                                         if (!$this->bDeDupe) $sSQL .= ", place_id";
 494                                         $sSQL .= ", get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) ";
 495                                 }
 496                         }
 497
 498                         $sSQL .= " order by importance desc";
 499                         if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
 500                         $aSearchResults = chksql($this->oDB->getAll($sSQL),
 501                                                  "Could not get details for place.");
 502
 503                         return $aSearchResults;
 504                 }
 505
 506                 function getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases)
 507                 {
 508                         /*
 509                                  Calculate all searches using aValidTokens i.e.
 510                                  'Wodsworth Road, Sheffield' =>
 511
 512                                  Phrase Wordset
 513                                  0      0       (wodsworth road)
 514                                  0      1       (wodsworth)(road)
 515                                  1      0       (sheffield)
 516
 517                                  Score how good the search is so they can be ordered
 518                          */
 519                         foreach($aPhrases as $iPhrase => $sPhrase)
 520                         {
 521                                 $aNewPhraseSearches = array();
 522                                 if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 523                                 else $sPhraseType = '';
 524
 525                                 foreach($aPhrases[$iPhrase]['wordsets'] as $iWordSet => $aWordset)
 526                                 {
 527                                         // Too many permutations - too expensive
 528                                         if ($iWordSet > 120) break;
 529
 530                                         $aWordsetSearches = $aSearches;
 531
 532                                         // Add all words from this wordset
 533                                         foreach($aWordset as $iToken => $sToken)
 534                                         {
 535                                                 //echo "<br><b>$sToken</b>";
 536                                                 $aNewWordsetSearches = array();
 537
 538                                                 foreach($aWordsetSearches as $aCurrentSearch)
 539                                                 {
 540                                                         //echo "<i>";
 541                                                         //var_dump($aCurrentSearch);
 542                                                         //echo "</i>";
 543
 544                                                         // If the token is valid
 545                                                         if (isset($aValidTokens[' '.$sToken]))
 546                                                         {
 547                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTerm)
 548                                                                 {
 549                                                                         $aSearch = $aCurrentSearch;
 550                                                                         $aSearch['iSearchRank']++;
 551                                                                         if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0')
 552                                                                         {
 553                                                                                 if ($aSearch['sCountryCode'] === false)
 554                                                                                 {
 555                                                                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 556                                                                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 557                                                                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases)))
 558                                                                                         {
 559                                                                                                 $aSearch['iSearchRank'] += 5;
 560                                                                                         }
 561                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 562                                                                                 }
 563                                                                         }
 564                                                                         elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null)
 565                                                                         {
 566                                                                                 if ($aSearch['fLat'] === '')
 567                                                                                 {
 568                                                                                         $aSearch['fLat'] = $aSearchTerm['lat'];
 569                                                                                         $aSearch['fLon'] = $aSearchTerm['lon'];
 570                                                                                         $aSearch['fRadius'] = $aSearchTerm['radius'];
 571                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 572                                                                                 }
 573                                                                         }
 574                                                                         elseif ($sPhraseType == 'postalcode')
 575                                                                         {
 576                                                                                 // We need to try the case where the postal code is the primary element (i.e. no way to tell if it is (postalcode, city) OR (city, postalcode) so try both
 577                                                                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 578                                                                                 {
 579                                                                                         // If we already have a name try putting the postcode first
 580                                                                                         if (sizeof($aSearch['aName']))
 581                                                                                         {
 582                                                                                                 $aNewSearch = $aSearch;
 583                                                                                                 $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 584                                                                                                 $aNewSearch['aName'] = array();
 585                                                                                                 $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 586                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 587                                                                                         }
 588
 589                                                                                         if (sizeof($aSearch['aName']))
 590                                                                                         {
 591                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false))
 592                                                                                                 {
 593                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 594                                                                                                 }
 595                                                                                                 else
 596                                                                                                 {
 597                                                                                                         $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 598                                                                                                         $aSearch['iSearchRank'] += 1000; // skip;
 599                                                                                                 }
 600                                                                                         }
 601                                                                                         else
 602                                                                                         {
 603                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 604                                                                                                 //$aSearch['iNamePhrase'] = $iPhrase;
 605                                                                                         }
 606                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 607                                                                                 }
 608
 609                                                                         }
 610                                                                         elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house')
 611                                                                         {
 612                                                                                 if ($aSearch['sHouseNumber'] === '')
 613                                                                                 {
 614                                                                                         $aSearch['sHouseNumber'] = $sToken;
 615                                                                                         // sanity check: if the housenumber is not mainly made
 616                                                                                         // up of numbers, add a penalty
 617                                                                                         if (preg_match_all("/[^0-9]/", $sToken, $aMatches) > 2) $aSearch['iSearchRank']++;
 618                                                                                         // also housenumbers should appear in the first or second phrase
 619                                                                                         if ($iPhrase > 1) $aSearch['iSearchRank'] += 1;
 620                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 621                                                                                         /*
 622                                                                                         // Fall back to not searching for this item (better than nothing)
 623                                                                                         $aSearch = $aCurrentSearch;
 624                                                                                         $aSearch['iSearchRank'] += 1;
 625                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 626                                                                                          */
 627                                                                                 }
 628                                                                         }
 629                                                                         elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null)
 630                                                                         {
 631                                                                                 if ($aSearch['sClass'] === '')
 632                                                                                 {
 633                                                                                         $aSearch['sOperator'] = $aSearchTerm['operator'];
 634                                                                                         $aSearch['sClass'] = $aSearchTerm['class'];
 635                                                                                         $aSearch['sType'] = $aSearchTerm['type'];
 636                                                                                         if (sizeof($aSearch['aName'])) $aSearch['sOperator'] = 'name';
 637                                                                                         else $aSearch['sOperator'] = 'near'; // near = in for the moment
 638                                                                                         if (strlen($aSearchTerm['operator']) == 0) $aSearch['iSearchRank'] += 1;
 639
 640                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 641                                                                                 }
 642                                                                         }
 643                                                                         elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 644                                                                         {
 645                                                                                 if (sizeof($aSearch['aName']))
 646                                                                                 {
 647                                                                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false))
 648                                                                                         {
 649                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 650                                                                                         }
 651                                                                                         else
 652                                                                                         {
 653                                                                                                 $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 654                                                                                                 $aSearch['iSearchRank'] += 1000; // skip;
 655                                                                                         }
 656                                                                                 }
 657                                                                                 else
 658                                                                                 {
 659                                                                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 660                                                                                         //$aSearch['iNamePhrase'] = $iPhrase;
 661                                                                                 }
 662                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 663                                                                         }
 664                                                                 }
 665                                                         }
 666                                                         // Look for partial matches.
 667                                                         // Note that there is no point in adding country terms here
 668                                                         // because country are omitted in the address.
 669                                                         if (isset($aValidTokens[$sToken]) && $sPhraseType != 'country')
 670                                                         {
 671                                                                 // Allow searching for a word - but at extra cost
 672                                                                 foreach($aValidTokens[$sToken] as $aSearchTerm)
 673                                                                 {
 674                                                                         if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 675                                                                         {
 676                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strpos($sToken, ' ') === false)
 677                                                                                 {
 678                                                                                         $aSearch = $aCurrentSearch;
 679                                                                                         $aSearch['iSearchRank'] += 1;
 680                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 681                                                                                         {
 682                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 683                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 684                                                                                         }
 685                                                                                         elseif (isset($aValidTokens[' '.$sToken])) // revert to the token version?
 686                                                                                         {
 687                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 688                                                                                                 $aSearch['iSearchRank'] += 1;
 689                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 690                                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTermToken)
 691                                                                                                 {
 692                                                                                                         if (empty($aSearchTermToken['country_code'])
 693                                                                                                                         && empty($aSearchTermToken['lat'])
 694                                                                                                                         && empty($aSearchTermToken['class']))
 695                                                                                                         {
 696                                                                                                                 $aSearch = $aCurrentSearch;
 697                                                                                                                 $aSearch['iSearchRank'] += 1;
 698                                                                                                                 $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 699                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 700                                                                                                         }
 701                                                                                                 }
 702                                                                                         }
 703                                                                                         else
 704                                                                                         {
 705                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 706                                                                                                 if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 707                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 708                                                                                         }
 709                                                                                 }
 710
 711                                                                                 if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase)
 712                                                                                 {
 713                                                                                         $aSearch = $aCurrentSearch;
 714                                                                                         $aSearch['iSearchRank'] += 1;
 715                                                                                         if (!sizeof($aCurrentSearch['aName'])) $aSearch['iSearchRank'] += 1;
 716                                                                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 717                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 718                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 719                                                                                         else
 720                                                                                                 $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 721                                                                                         $aSearch['iNamePhrase'] = $iPhrase;
 722                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 723                                                                                 }
 724                                                                         }
 725                                                                 }
 726                                                         }
 727                                                         else
 728                                                         {
 729                                                                 // Allow skipping a word - but at EXTREAM cost
 730                                                                 //$aSearch = $aCurrentSearch;
 731                                                                 //$aSearch['iSearchRank']+=100;
 732                                                                 //$aNewWordsetSearches[] = $aSearch;
 733                                                         }
 734                                                 }
 735                                                 // Sort and cut
 736                                                 usort($aNewWordsetSearches, 'bySearchRank');
 737                                                 $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
 738                                         }
 739                                         //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
 740
 741                                         $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
 742                                         usort($aNewPhraseSearches, 'bySearchRank');
 743
 744                                         $aSearchHash = array();
 745                                         foreach($aNewPhraseSearches as $iSearch => $aSearch)
 746                                         {
 747                                                 $sHash = serialize($aSearch);
 748                                                 if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
 749                                                 else $aSearchHash[$sHash] = 1;
 750                                         }
 751
 752                                         $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
 753                                 }
 754
 755                                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
 756                                 $aGroupedSearches = array();
 757                                 foreach($aNewPhraseSearches as $aSearch)
 758                                 {
 759                                         if ($aSearch['iSearchRank'] < $this->iMaxRank)
 760                                         {
 761                                                 if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 762                                                 $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 763                                         }
 764                                 }
 765                                 ksort($aGroupedSearches);
 766
 767                                 $iSearchCount = 0;
 768                                 $aSearches = array();
 769                                 foreach($aGroupedSearches as $iScore => $aNewSearches)
 770                                 {
 771                                         $iSearchCount += sizeof($aNewSearches);
 772                                         $aSearches = array_merge($aSearches, $aNewSearches);
 773                                         if ($iSearchCount > 50) break;
 774                                 }
 775
 776                                 //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 777
 778                         }
 779                         return $aGroupedSearches;
 780
 781                 }
 782
 783                 /* Perform the actual query lookup.
 784
 785                         Returns an ordered list of results, each with the following fields:
 786                                 osm_type: type of corresponding OSM object
 787                                                         N - node
 788                                                         W - way
 789                                                         R - relation
 790                                                         P - postcode (internally computed)
 791                                 osm_id: id of corresponding OSM object
 792                                 class: general object class (corresponds to tag key of primary OSM tag)
 793                                 type: subclass of object (corresponds to tag value of primary OSM tag)
 794                                 admin_level: see http://wiki.openstreetmap.org/wiki/Admin_level
 795                                 rank_search: rank in search hierarchy
 796                                                         (see also http://wiki.openstreetmap.org/wiki/Nominatim/Development_overview#Country_to_street_level)
 797                                 rank_address: rank in address hierarchy (determines orer in address)
 798                                 place_id: internal key (may differ between different instances)
 799                                 country_code: ISO country code
 800                                 langaddress: localized full address
 801                                 placename: localized name of object
 802                                 ref: content of ref tag (if available)
 803                                 lon: longitude
 804                                 lat: latitude
 805                                 importance: importance of place based on Wikipedia link count
 806                                 addressimportance: cumulated importance of address elements
 807                                 extra_place: type of place (for admin boundaries, if there is a place tag)
 808                                 aBoundingBox: bounding Box
 809                                 label: short description of the object class/type (English only)
 810                                 name: full name (currently the same as langaddress)
 811                                 foundorder: secondary ordering for places with same importance
 812                 */
 813                 function lookup()
 814                 {
 815                         if (!$this->sQuery && !$this->aStructuredQuery) return false;
 816
 817                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 818                         $sCountryCodesSQL = false;
 819                         if ($this->aCountryCodes)
 820                         {
 821                                 $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 822                         }
 823
 824                         $sQuery = $this->sQuery;
 825
 826                         // Conflicts between US state abreviations and various words for 'the' in different languages
 827                         if (isset($this->aLangPrefOrder['name:en']))
 828                         {
 829                                 $sQuery = preg_replace('/(^|,)\s*il\s*(,|$)/','\1illinois\2', $sQuery);
 830                                 $sQuery = preg_replace('/(^|,)\s*al\s*(,|$)/','\1alabama\2', $sQuery);
 831                                 $sQuery = preg_replace('/(^|,)\s*la\s*(,|$)/','\1louisiana\2', $sQuery);
 832                         }
 833
 834                         $bBoundingBoxSearch = $this->bBoundedSearch && $this->sViewboxSmallSQL;
 835                         if ($this->sViewboxCentreSQL)
 836                         {
 837                                 // For complex viewboxes (routes) precompute the bounding geometry
 838                                 $sGeom = chksql($this->oDB->getOne("select ".$this->sViewboxSmallSQL),
 839                                                 "Could not get small viewbox");
 840                                 $this->sViewboxSmallSQL = "'".$sGeom."'::geometry";
 841
 842                                 $sGeom = chksql($this->oDB->getOne("select ".$this->sViewboxLargeSQL),
 843                                                 "Could not get large viewbox");
 844                                 $this->sViewboxLargeSQL = "'".$sGeom."'::geometry";
 845                         }
 846
 847                         // Do we have anything that looks like a lat/lon pair?
 848                         if ( $aLooksLike = looksLikeLatLonPair($sQuery) )
 849                         {
 850                                 $this->setNearPoint(array($aLooksLike['lat'], $aLooksLike['lon']));
 851                                 $sQuery = $aLooksLike['query'];
 852                         }
 853
 854                         $aSearchResults = array();
 855                         if ($sQuery || $this->aStructuredQuery)
 856                         {
 857                                 // Start with a blank search
 858                                 $aSearches = array(
 859                                         array('iSearchRank' => 0,
 860                                                                 'iNamePhrase' => -1,
 861                                                                 'sCountryCode' => false,
 862                                                                 'aName' => array(),
 863                                                                 'aAddress' => array(),
 864                                                                 'aFullNameAddress' => array(),
 865                                                                 'aNameNonSearch' => array(),
 866                                                                 'aAddressNonSearch' => array(),
 867                                                                 'sOperator' => '',
 868                                                                 'aFeatureName' => array(),
 869                                                                 'sClass' => '',
 870                                                                 'sType' => '',
 871                                                                 'sHouseNumber' => '',
 872                                                                 'fLat' => '',
 873                                                                 'fLon' => '',
 874                                                                 'fRadius' => ''
 875                                                         )
 876                                 );
 877
 878                                 // Do we have a radius search?
 879                                 $sNearPointSQL = false;
 880                                 if ($this->aNearPoint)
 881                                 {
 882                                         $sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$this->aNearPoint[1].",".(float)$this->aNearPoint[0]."),4326)";
 883                                         $aSearches[0]['fLat'] = (float)$this->aNearPoint[0];
 884                                         $aSearches[0]['fLon'] = (float)$this->aNearPoint[1];
 885                                         $aSearches[0]['fRadius'] = (float)$this->aNearPoint[2];
 886                                 }
 887
 888                                 // Any 'special' terms in the search?
 889                                 $bSpecialTerms = false;
 890                                 preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 891                                 $aSpecialTerms = array();
 892                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 893                                 {
 894                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 895                                         $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 896                                 }
 897
 898                                 preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 899                                 $aSpecialTerms = array();
 900                                 if (isset($this->aStructuredQuery['amenity']) && $this->aStructuredQuery['amenity'])
 901                                 {
 902                                         $aSpecialTermsRaw[] = array('['.$this->aStructuredQuery['amenity'].']', $this->aStructuredQuery['amenity']);
 903                                         unset($this->aStructuredQuery['amenity']);
 904                                 }
 905                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 906                                 {
 907                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 908                                         $sToken = chksql($this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string"));
 909                                         $sSQL = 'select * from (select word_id,word_token, word, class, type, country_code, operator';
 910                                         $sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 911                                         if (CONST_Debug) var_Dump($sSQL);
 912                                         $aSearchWords = chksql($this->oDB->getAll($sSQL));
 913                                         $aNewSearches = array();
 914                                         foreach($aSearches as $aSearch)
 915                                         {
 916                                                 foreach($aSearchWords as $aSearchTerm)
 917                                                 {
 918                                                         $aNewSearch = $aSearch;
 919                                                         if ($aSearchTerm['country_code'])
 920                                                         {
 921                                                                 $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 922                                                                 $aNewSearches[] = $aNewSearch;
 923                                                                 $bSpecialTerms = true;
 924                                                         }
 925                                                         if ($aSearchTerm['class'])
 926                                                         {
 927                                                                 $aNewSearch['sClass'] = $aSearchTerm['class'];
 928                                                                 $aNewSearch['sType'] = $aSearchTerm['type'];
 929                                                                 $aNewSearches[] = $aNewSearch;
 930                                                                 $bSpecialTerms = true;
 931                                                         }
 932                                                 }
 933                                         }
 934                                         $aSearches = $aNewSearches;
 935                                 }
 936
 937                                 // Split query into phrases
 938                                 // Commas are used to reduce the search space by indicating where phrases split
 939                                 if ($this->aStructuredQuery)
 940                                 {
 941                                         $aPhrases = $this->aStructuredQuery;
 942                                         $bStructuredPhrases = true;
 943                                 }
 944                                 else
 945                                 {
 946                                         $aPhrases = explode(',',$sQuery);
 947                                         $bStructuredPhrases = false;
 948                                 }
 949
 950                                 // Convert each phrase to standard form
 951                                 // Create a list of standard words
 952                                 // Get all 'sets' of words
 953                                 // Generate a complete list of all
 954                                 $aTokens = array();
 955                                 foreach($aPhrases as $iPhrase => $sPhrase)
 956                                 {
 957                                         $aPhrase = chksql($this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string"),
 958                                                           "Cannot nomralize query string (is it an UTF-8 string?)");
 959                                         if (trim($aPhrase['string']))
 960                                         {
 961                                                 $aPhrases[$iPhrase] = $aPhrase;
 962                                                 $aPhrases[$iPhrase]['words'] = explode(' ',$aPhrases[$iPhrase]['string']);
 963                                                 $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
 964                                                 $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
 965                                         }
 966                                         else
 967                                         {
 968                                                 unset($aPhrases[$iPhrase]);
 969                                         }
 970                                 }
 971
 972                                 // Reindex phrases - we make assumptions later on that they are numerically keyed in order
 973                                 $aPhraseTypes = array_keys($aPhrases);
 974                                 $aPhrases = array_values($aPhrases);
 975
 976                                 if (sizeof($aTokens))
 977                                 {
 978                                         // Check which tokens we have, get the ID numbers
 979                                         $sSQL = 'select word_id,word_token, word, class, type, country_code, operator, search_name_count';
 980                                         $sSQL .= ' from word where word_token in ('.join(',',array_map("getDBQuoted",$aTokens)).')';
 981
 982                                         if (CONST_Debug) var_Dump($sSQL);
 983
 984                                         $aValidTokens = array();
 985                                         if (sizeof($aTokens))
 986                                         {
 987                                                 $aDatabaseWords = chksql($this->oDB->getAll($sSQL),
 988                                                                          "Could not get word tokens.");
 989                                         }
 990                                         else
 991                                         {
 992                                                 $aDatabaseWords = array();
 993                                         }
 994                                         $aPossibleMainWordIDs = array();
 995                                         $aWordFrequencyScores = array();
 996                                         foreach($aDatabaseWords as $aToken)
 997                                         {
 998                                                 // Very special case - require 2 letter country param to match the country code found
 999                                                 if ($bStructuredPhrases && $aToken['country_code'] && !empty($this->aStructuredQuery['country'])
1000                                                                 && strlen($this->aStructuredQuery['country']) == 2 && strtolower($this->aStructuredQuery['country']) != $aToken['country_code'])
1001                                                 {
1002                                                         continue;
1003                                                 }
1004
1005                                                 if (isset($aValidTokens[$aToken['word_token']]))
1006                                                 {
1007                                                         $aValidTokens[$aToken['word_token']][] = $aToken;
1008                                                 }
1009                                                 else
1010                                                 {
1011                                                         $aValidTokens[$aToken['word_token']] = array($aToken);
1012                                                 }
1013                                                 if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
1014                                                 $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
1015                                         }
1016                                         if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
1017
1018                                         // Try and calculate GB postcodes we might be missing
1019                                         foreach($aTokens as $sToken)
1020                                         {
1021                                                 // Source of gb postcodes is now definitive - always use
1022                                                 if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData))
1023                                                 {
1024                                                         if (substr($aData[1],-2,1) != ' ')
1025                                                         {
1026                                                                 $aData[0] = substr($aData[0],0,strlen($aData[1])-1).' '.substr($aData[0],strlen($aData[1])-1);
1027                                                                 $aData[1] = substr($aData[1],0,-1).' '.substr($aData[1],-1,1);
1028                                                         }
1029                                                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
1030                                                         if ($aGBPostcodeLocation)
1031                                                         {
1032                                                                 $aValidTokens[$sToken] = $aGBPostcodeLocation;
1033                                                         }
1034                                                 }
1035                                                 // US ZIP+4 codes - if there is no token,
1036                                                 //      merge in the 5-digit ZIP code
1037                                                 else if (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData))
1038                                                 {
1039                                                         if (isset($aValidTokens[$aData[1]]))
1040                                                         {
1041                                                                 foreach($aValidTokens[$aData[1]] as $aToken)
1042                                                                 {
1043                                                                         if (!$aToken['class'])
1044                                                                         {
1045                                                                                 if (isset($aValidTokens[$sToken]))
1046                                                                                 {
1047                                                                                         $aValidTokens[$sToken][] = $aToken;
1048                                                                                 }
1049                                                                                 else
1050                                                                                 {
1051                                                                                         $aValidTokens[$sToken] = array($aToken);
1052                                                                                 }
1053                                                                         }
1054                                                                 }
1055                                                         }
1056                                                 }
1057                                         }
1058
1059                                         foreach($aTokens as $sToken)
1060                                         {
1061                                                 // Unknown single word token with a number - assume it is a house number
1062                                                 if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken,' ') === false && preg_match('/[0-9]/', $sToken))
1063                                                 {
1064                                                         $aValidTokens[' '.$sToken] = array(array('class'=>'place','type'=>'house'));
1065                                                 }
1066                                         }
1067
1068                                         // Any words that have failed completely?
1069                                         // TODO: suggestions
1070
1071                                         // Start the search process
1072                                         // array with: placeid => -1 | tiger-housenumber
1073                                         $aResultPlaceIDs = array();
1074
1075                                         $aGroupedSearches = $this->getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases);
1076
1077                                         if ($this->bReverseInPlan)
1078                                         {
1079                                                 // Reverse phrase array and also reverse the order of the wordsets in
1080                                                 // the first and final phrase. Don't bother about phrases in the middle
1081                                                 // because order in the address doesn't matter.
1082                                                 $aPhrases = array_reverse($aPhrases);
1083                                                 $aPhrases[0]['wordsets'] = getInverseWordSets($aPhrases[0]['words'], 0);
1084                                                 if (sizeof($aPhrases) > 1)
1085                                                 {
1086                                                         $aFinalPhrase = end($aPhrases);
1087                                                         $aPhrases[sizeof($aPhrases)-1]['wordsets'] = getInverseWordSets($aFinalPhrase['words'], 0);
1088                                                 }
1089                                                 $aReverseGroupedSearches = $this->getGroupedSearches($aSearches, null, $aPhrases, $aValidTokens, $aWordFrequencyScores, false);
1090
1091                                                 foreach($aGroupedSearches as $aSearches)
1092                                                 {
1093                                                         foreach($aSearches as $aSearch)
1094                                                         {
1095                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1096                                                                 {
1097                                                                         if (!isset($aReverseGroupedSearches[$aSearch['iSearchRank']])) $aReverseGroupedSearches[$aSearch['iSearchRank']] = array();
1098                                                                         $aReverseGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1099                                                                 }
1100
1101                                                         }
1102                                                 }
1103
1104                                                 $aGroupedSearches = $aReverseGroupedSearches;
1105                                                 ksort($aGroupedSearches);
1106                                         }
1107                                 }
1108                                 else
1109                                 {
1110                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
1111                                         $aGroupedSearches = array();
1112                                         foreach($aSearches as $aSearch)
1113                                         {
1114                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1115                                                 {
1116                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1117                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1118                                                 }
1119                                         }
1120                                         ksort($aGroupedSearches);
1121                                 }
1122
1123                                 if (CONST_Debug) var_Dump($aGroupedSearches);
1124
1125                                 if (CONST_Search_TryDroppedAddressTerms && sizeof($this->aStructuredQuery) > 0)
1126                                 {
1127                                         $aCopyGroupedSearches = $aGroupedSearches;
1128                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
1129                                         {
1130                                                 foreach($aSearches as $iSearch => $aSearch)
1131                                                 {
1132                                                         $aReductionsList = array($aSearch['aAddress']);
1133                                                         $iSearchRank = $aSearch['iSearchRank'];
1134                                                         while(sizeof($aReductionsList) > 0)
1135                                                         {
1136                                                                 $iSearchRank += 5;
1137                                                                 if ($iSearchRank > iMaxRank) break 3;
1138                                                                 $aNewReductionsList = array();
1139                                                                 foreach($aReductionsList as $aReductionsWordList)
1140                                                                 {
1141                                                                         for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++)
1142                                                                         {
1143                                                                                 $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
1144                                                                                 $aReverseSearch = $aSearch;
1145                                                                                 $aSearch['aAddress'] = $aReductionsWordListResult;
1146                                                                                 $aSearch['iSearchRank'] = $iSearchRank;
1147                                                                                 $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
1148                                                                                 if (sizeof($aReductionsWordListResult) > 0)
1149                                                                                 {
1150                                                                                         $aNewReductionsList[] = $aReductionsWordListResult;
1151                                                                                 }
1152                                                                         }
1153                                                                 }
1154                                                                 $aReductionsList = $aNewReductionsList;
1155                                                         }
1156                                                 }
1157                                         }
1158                                         ksort($aGroupedSearches);
1159                                 }
1160
1161                                 // Filter out duplicate searches
1162                                 $aSearchHash = array();
1163                                 foreach($aGroupedSearches as $iGroup => $aSearches)
1164                                 {
1165                                         foreach($aSearches as $iSearch => $aSearch)
1166                                         {
1167                                                 $sHash = serialize($aSearch);
1168                                                 if (isset($aSearchHash[$sHash]))
1169                                                 {
1170                                                         unset($aGroupedSearches[$iGroup][$iSearch]);
1171                                                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
1172                                                 }
1173                                                 else
1174                                                 {
1175                                                         $aSearchHash[$sHash] = 1;
1176                                                 }
1177                                         }
1178                                 }
1179
1180                                 if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1181
1182                                 $iGroupLoop = 0;
1183                                 $iQueryLoop = 0;
1184                                 foreach($aGroupedSearches as $iGroupedRank => $aSearches)
1185                                 {
1186                                         $iGroupLoop++;
1187                                         foreach($aSearches as $aSearch)
1188                                         {
1189                                                 $iQueryLoop++;
1190                                                 $searchedHousenumber = -1;
1191
1192                                                 if (CONST_Debug) { echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>"; }
1193                                                 if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1194
1195                                                 // No location term?
1196                                                 if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['fLon'])
1197                                                 {
1198                                                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber'])
1199                                                         {
1200                                                                 // Just looking for a country by code - look it up
1201                                                                 if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank)
1202                                                                 {
1203                                                                         $sSQL = "select place_id from placex where calculated_country_code='".$aSearch['sCountryCode']."' and rank_search = 4";
1204                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1205                                                                         if ($bBoundingBoxSearch)
1206                                                                                 $sSQL .= " and _st_intersects($this->sViewboxSmallSQL, geometry)";
1207                                                                         $sSQL .= " order by st_area(geometry) desc limit 1";
1208                                                                         if (CONST_Debug) var_dump($sSQL);
1209                                                                         $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1210                                                                 }
1211                                                                 else
1212                                                                 {
1213                                                                         $aPlaceIDs = array();
1214                                                                 }
1215                                                         }
1216                                                         else
1217                                                         {
1218                                                                 if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
1219                                                                 if (!$aSearch['sClass']) continue;
1220                                                                 $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1221                                                                 if (chksql($this->oDB->getOne($sSQL)))
1222                                                                 {
1223                                                                         $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1224                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1225                                                                         $sSQL .= " where st_contains($this->sViewboxSmallSQL, ct.centroid)";
1226                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1227                                                                         if (sizeof($this->aExcludePlaceIDs))
1228                                                                         {
1229                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1230                                                                         }
1231                                                                         if ($this->sViewboxCentreSQL) $sSQL .= " order by st_distance($this->sViewboxCentreSQL, ct.centroid) asc";
1232                                                                         $sSQL .= " limit $this->iLimit";
1233                                                                         if (CONST_Debug) var_dump($sSQL);
1234                                                                         $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1235
1236                                                                         // If excluded place IDs are given, it is fair to assume that
1237                                                                         // there have been results in the small box, so no further
1238                                                                         // expansion in that case.
1239                                                                         // Also don't expand if bounded results were requested.
1240                                                                         if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs) && !$this->bBoundedSearch)
1241                                                                         {
1242                                                                                 $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1243                                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1244                                                                                 $sSQL .= " where st_contains($this->sViewboxLargeSQL, ct.centroid)";
1245                                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1246                                                                                 if ($this->sViewboxCentreSQL) $sSQL .= " order by st_distance($this->sViewboxCentreSQL, ct.centroid) asc";
1247                                                                                 $sSQL .= " limit $this->iLimit";
1248                                                                                 if (CONST_Debug) var_dump($sSQL);
1249                                                                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1250                                                                         }
1251                                                                 }
1252                                                                 else
1253                                                                 {
1254                                                                         $sSQL = "select place_id from placex where class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1255                                                                         $sSQL .= " and st_contains($this->sViewboxSmallSQL, geometry) and linked_place_id is null";
1256                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1257                                                                         if ($this->sViewboxCentreSQL)   $sSQL .= " order by st_distance($this->sViewboxCentreSQL, centroid) asc";
1258                                                                         $sSQL .= " limit $this->iLimit";
1259                                                                         if (CONST_Debug) var_dump($sSQL);
1260                                                                         $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1261                                                                 }
1262                                                         }
1263                                                 }
1264                                                 // If a coordinate is given, the search must either
1265                                                 // be for a name or a special search. Ignore everythin else.
1266                                                 else if ($aSearch['fLon'] && !sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['sClass'])
1267                                                 {
1268                                                         $aPlaceIDs = array();
1269                                                 }
1270                                                 else
1271                                                 {
1272                                                         $aPlaceIDs = array();
1273
1274                                                         // First we need a position, either aName or fLat or both
1275                                                         $aTerms = array();
1276                                                         $aOrder = array();
1277
1278                                                         if ($aSearch['sHouseNumber'] && sizeof($aSearch['aAddress']))
1279                                                         {
1280                                                                 $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1281                                 $aOrder[] = "";
1282                                                                 $aOrder[0] = " (exists(select place_id from placex where parent_place_id = search_name.place_id";
1283                                 $aOrder[0] .= " and transliteration(housenumber) ~* E'".$sHouseNumberRegex."' limit 1) ";
1284                                                                 // also housenumbers from interpolation lines table are needed
1285                                                                 $aOrder[0] .= " or exists(select place_id from location_property_osmline where parent_place_id = search_name.place_id";
1286                                 $aOrder[0] .= " and ".intval($aSearch['sHouseNumber']).">=startnumber and ".intval($aSearch['sHouseNumber'])."<=endnumber limit 1))";
1287                                                                 $aOrder[0] .= " desc";
1288                                                         }
1289
1290                                                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1291                                                         // they might be right - but they are just too darned expensive to run
1292                                                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
1293                                                         if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'],",")."]";
1294                                                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress'])
1295                                                         {
1296                                                                 // For infrequent name terms disable index usage for address
1297                                                                 if (CONST_Search_NameOnlySearchFrequencyThreshold &&
1298                                                                                 sizeof($aSearch['aName']) == 1 &&
1299                                                                                 $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold)
1300                                                                 {
1301                                                                         $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'],$aSearch['aAddressNonSearch']),",")."]";
1302                                                                 }
1303                                                                 else
1304                                                                 {
1305                                                                         $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'],",")."]";
1306                                                                         if (sizeof($aSearch['aAddressNonSearch'])) $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'],",")."]";
1307                                                                 }
1308                                                         }
1309                                                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1310                                                         if ($aSearch['sHouseNumber'])
1311                                                         {
1312                                                                 $aTerms[] = "address_rank between 16 and 27";
1313                                                         }
1314                                                         else
1315                                                         {
1316                                                                 if ($this->iMinAddressRank > 0)
1317                                                                 {
1318                                                                         $aTerms[] = "address_rank >= ".$this->iMinAddressRank;
1319                                                                 }
1320                                                                 if ($this->iMaxAddressRank < 30)
1321                                                                 {
1322                                                                         $aTerms[] = "address_rank <= ".$this->iMaxAddressRank;
1323                                                                 }
1324                                                         }
1325                                                         if ($aSearch['fLon'] && $aSearch['fLat'])
1326                                                         {
1327                                                                 $aTerms[] = "ST_DWithin(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326), ".$aSearch['fRadius'].")";
1328                                                                 $aOrder[] = "ST_Distance(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326)) ASC";
1329                                                         }
1330                                                         if (sizeof($this->aExcludePlaceIDs))
1331                                                         {
1332                                                                 $aTerms[] = "place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1333                                                         }
1334                                                         if ($sCountryCodesSQL)
1335                                                         {
1336                                                                 $aTerms[] = "country_code in ($sCountryCodesSQL)";
1337                                                         }
1338
1339                                                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
1340                                                         if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) asc";
1341
1342                                                         if ($aSearch['sHouseNumber'])
1343                                                         {
1344                                                                 $sImportanceSQL = '- abs(26 - address_rank) + 3';
1345                                                         }
1346                                                         else
1347                                                         {
1348                                                                 $sImportanceSQL = '(case when importance = 0 OR importance IS NULL then 0.75-(search_rank::float/40) else importance end)';
1349                                                         }
1350                                                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1351                                                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1352
1353                                                         $aOrder[] = "$sImportanceSQL DESC";
1354                                                         if (sizeof($aSearch['aFullNameAddress']))
1355                                                         {
1356                                                                 $sExactMatchSQL = '(select count(*) from (select unnest(ARRAY['.join($aSearch['aFullNameAddress'],",").']) INTERSECT select unnest(nameaddress_vector))s) as exactmatch';
1357                                                                 $aOrder[] = 'exactmatch DESC';
1358                                                         } else {
1359                                                                 $sExactMatchSQL = '0::int as exactmatch';
1360                                                         }
1361
1362                                                         if (sizeof($aTerms))
1363                                                         {
1364                                                                 $sSQL = "select place_id, ";
1365                                                                 $sSQL .= $sExactMatchSQL;
1366                                                                 $sSQL .= " from search_name";
1367                                                                 $sSQL .= " where ".join(' and ',$aTerms);
1368                                                                 $sSQL .= " order by ".join(', ',$aOrder);
1369                                                                 if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
1370                                                                         $sSQL .= " limit 20";
1371                                                                 elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
1372                                                                         $sSQL .= " limit 1";
1373                                                                 else
1374                                                                         $sSQL .= " limit ".$this->iLimit;
1375
1376                                                                 if (CONST_Debug) { var_dump($sSQL); }
1377                                                                 $aViewBoxPlaceIDs = chksql($this->oDB->getAll($sSQL),
1378                                                                                            "Could not get places for search terms.");
1379                                                                 //var_dump($aViewBoxPlaceIDs);
1380                                                                 // Did we have an viewbox matches?
1381                                                                 $aPlaceIDs = array();
1382                                                                 $bViewBoxMatch = false;
1383                                                                 foreach($aViewBoxPlaceIDs as $aViewBoxRow)
1384                                                                 {
1385                                                                         //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1386                                                                         //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1387                                                                         //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1388                                                                         //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1389                                                                         $aPlaceIDs[] = $aViewBoxRow['place_id'];
1390                                                                         $this->exactMatchCache[$aViewBoxRow['place_id']] = $aViewBoxRow['exactmatch'];
1391                                                                 }
1392                                                         }
1393                                                         //var_Dump($aPlaceIDs);
1394                                                         //exit;
1395
1396                                                         //now search for housenumber, if housenumber provided
1397                                                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs))
1398                                                         {
1399                                                                 $searchedHousenumber = intval($aSearch['sHouseNumber']);
1400                                                                 $aRoadPlaceIDs = $aPlaceIDs;
1401                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1402
1403                                                                 // Now they are indexed, look for a house attached to a street we found
1404                                                                 $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1405                                                                 $sSQL = "select place_id from placex where parent_place_id in (".$sPlaceIDs.") and transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
1406                                                                 if (sizeof($this->aExcludePlaceIDs))
1407                                                                 {
1408                                                                         $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1409                                                                 }
1410                                                                 $sSQL .= " limit $this->iLimit";
1411                                                                 if (CONST_Debug) var_dump($sSQL);
1412                                                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1413
1414                                                                 // if nothing found, search in the interpolation line table
1415                                                                 if(!sizeof($aPlaceIDs))
1416                                                                 {
1417                                                                         // do we need to use transliteration and the regex for housenumbers???
1418                                                                         //new query for lines, not housenumbers anymore
1419                                                                         if($searchedHousenumber%2 == 0){
1420                                                                                 //if housenumber is even, look for housenumber in streets with interpolationtype even or all
1421                                                                                 $sSQL = "select distinct place_id from location_property_osmline where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='even' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1422                                                                         }else{
1423                                                                                 //look for housenumber in streets with interpolationtype odd or all
1424                                                                                 $sSQL = "select distinct place_id from location_property_osmline where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='odd' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1425                                                                         }
1426
1427                                                                         if (sizeof($this->aExcludePlaceIDs))
1428                                                                         {
1429                                                                                 $sSQL .= " and place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1430                                                                         }
1431                                                                         //$sSQL .= " limit $this->iLimit";
1432                                                                         if (CONST_Debug) var_dump($sSQL);
1433                                                                         //get place IDs
1434                                                                         $aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
1435                                                                 }
1436
1437                                                                 // If nothing found try the aux fallback table
1438                                                                 if (CONST_Use_Aux_Location_data && !sizeof($aPlaceIDs))
1439                                                                 {
1440                                                                         $sSQL = "select place_id from location_property_aux where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1441                                                                         if (sizeof($this->aExcludePlaceIDs))
1442                                                                         {
1443                                                                                 $sSQL .= " and parent_place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1444                                                                         }
1445                                                                         //$sSQL .= " limit $this->iLimit";
1446                                                                         if (CONST_Debug) var_dump($sSQL);
1447                                                                         $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1448                                                                 }
1449
1450                                                                 //if nothing was found in placex or location_property_aux, then search in Tiger data for this housenumber(location_property_tiger)
1451                                                                 if (CONST_Use_US_Tiger_Data && !sizeof($aPlaceIDs))
1452                                                                 {
1453                                                                         //new query for lines, not housenumbers anymore
1454                                                                         if($searchedHousenumber%2 == 0){
1455                                                                                 //if housenumber is even, look for housenumber in streets with interpolationtype even or all
1456                                                                                 $sSQL = "select distinct place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='even' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1457                                                                         }else{
1458                                                                                 //look for housenumber in streets with interpolationtype odd or all
1459                                                                                 $sSQL = "select distinct place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and (interpolationtype='odd' or interpolationtype='all') and ".$searchedHousenumber.">=startnumber and ".$searchedHousenumber."<=endnumber";
1460                                                                         }
1461
1462                                                                         if (sizeof($this->aExcludePlaceIDs))
1463                                                                         {
1464                                                                                 $sSQL .= " and place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1465                                                                         }
1466                                                                         //$sSQL .= " limit $this->iLimit";
1467                                                                         if (CONST_Debug) var_dump($sSQL);
1468                                                                         //get place IDs
1469                                                                         $aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
1470                                                                 }
1471
1472                                                                 // Fallback to the road (if no housenumber was found)
1473                                                                 if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber']))
1474                                                                 {
1475                                                                         $aPlaceIDs = $aRoadPlaceIDs;
1476                                                                         //set to -1, if no housenumbers were found
1477                                                                         $searchedHousenumber = -1;
1478                                                                 }
1479                                                                 //else: housenumber was found, remains saved in searchedHousenumber
1480                                                         }
1481
1482
1483                                                         if ($aSearch['sClass'] && sizeof($aPlaceIDs))
1484                                                         {
1485                                                                 $sPlaceIDs = join(',', $aPlaceIDs);
1486                                                                 $aClassPlaceIDs = array();
1487
1488                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name')
1489                                                                 {
1490                                                                         // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1491                                                                         $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1492                                                                         $sSQL .= " and linked_place_id is null";
1493                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1494                                                                         $sSQL .= " order by rank_search asc limit $this->iLimit";
1495                                                                         if (CONST_Debug) var_dump($sSQL);
1496                                                                         $aClassPlaceIDs = chksql($this->oDB->getCol($sSQL));
1497                                                                 }
1498
1499                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
1500                                                                 {
1501                                                                         $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1502                                                                         $bCacheTable = chksql($this->oDB->getOne($sSQL));
1503
1504                                                                         $sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";
1505
1506                                                                         if (CONST_Debug) var_dump($sSQL);
1507                                                                         $this->iMaxRank = ((int)chksql($this->oDB->getOne($sSQL)));
1508
1509                                                                         // For state / country level searches the normal radius search doesn't work very well
1510                                                                         $sPlaceGeom = false;
1511                                                                         if ($this->iMaxRank < 9 && $bCacheTable)
1512                                                                         {
1513                                                                                 // Try and get a polygon to search in instead
1514                                                                                 $sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
1515                                                                                 if (CONST_Debug) var_dump($sSQL);
1516                                                                                 $sPlaceGeom = chksql($this->oDB->getOne($sSQL));
1517                                                                         }
1518
1519                                                                         if ($sPlaceGeom)
1520                                                                         {
1521                                                                                 $sPlaceIDs = false;
1522                                                                         }
1523                                                                         else
1524                                                                         {
1525                                                                                 $this->iMaxRank += 5;
1526                                                                                 $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1527                                                                                 if (CONST_Debug) var_dump($sSQL);
1528                                                                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1529                                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1530                                                                         }
1531
1532                                                                         if ($sPlaceIDs || $sPlaceGeom)
1533                                                                         {
1534
1535                                                                                 $fRange = 0.01;
1536                                                                                 if ($bCacheTable)
1537                                                                                 {
1538                                                                                         // More efficient - can make the range bigger
1539                                                                                         $fRange = 0.05;
1540
1541                                                                                         $sOrderBySQL = '';
1542                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
1543                                                                                         else if ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1544                                                                                         else if ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1545
1546                                                                                         $sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
1547                                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1548                                                                                         if ($sPlaceIDs)
1549                                                                                         {
1550                                                                                                 $sSQL .= ",placex as f where ";
1551                                                                                                 $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1552                                                                                         }
1553                                                                                         if ($sPlaceGeom)
1554                                                                                         {
1555                                                                                                 $sSQL .= " where ";
1556                                                                                                 $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1557                                                                                         }
1558                                                                                         if (sizeof($this->aExcludePlaceIDs))
1559                                                                                         {
1560                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1561                                                                                         }
1562                                                                                         if ($sCountryCodesSQL) $sSQL .= " and lp.calculated_country_code in ($sCountryCodesSQL)";
1563                                                                                         if ($sOrderBySQL) $sSQL .= "order by ".$sOrderBySQL." asc";
1564                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1565                                                                                         $sSQL .= " limit $this->iLimit";
1566                                                                                         if (CONST_Debug) var_dump($sSQL);
1567                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
1568                                                                                 }
1569                                                                                 else
1570                                                                                 {
1571                                                                                         if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
1572
1573                                                                                         $sOrderBySQL = '';
1574                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
1575                                                                                         else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1576
1577                                                                                         $sSQL = "select distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'')." from placex as l,placex as f where ";
1578                                                                                         $sSQL .= "f.place_id in ( $sPlaceIDs) and ST_DWithin(l.geometry, f.centroid, $fRange) ";
1579                                                                                         $sSQL .= "and l.class='".$aSearch['sClass']."' and l.type='".$aSearch['sType']."' ";
1580                                                                                         if (sizeof($this->aExcludePlaceIDs))
1581                                                                                         {
1582                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1583                                                                                         }
1584                                                                                         if ($sCountryCodesSQL) $sSQL .= " and l.calculated_country_code in ($sCountryCodesSQL)";
1585                                                                                         if ($sOrderBy) $sSQL .= "order by ".$OrderBysSQL." asc";
1586                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1587                                                                                         $sSQL .= " limit $this->iLimit";
1588                                                                                         if (CONST_Debug) var_dump($sSQL);
1589                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
1590                                                                                 }
1591                                                                         }
1592                                                                 }
1593
1594                                                                 $aPlaceIDs = $aClassPlaceIDs;
1595
1596                                                         }
1597
1598                                                 }
1599
1600                                                 if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }
1601
1602                                                 foreach($aPlaceIDs as $iPlaceID)
1603                                                 {
1604                                                         // array for placeID => -1 | Tiger housenumber
1605                                                         $aResultPlaceIDs[$iPlaceID] = $searchedHousenumber;
1606                                                 }
1607                                                 if ($iQueryLoop > 20) break;
1608                                         }
1609
1610                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30))
1611                                         {
1612                                                 // Need to verify passes rank limits before dropping out of the loop (yuk!)
1613                                                 // reduces the number of place ids, like a filter
1614                                                 // rank_address is 30 for interpolated housenumbers
1615                                                 $sSQL = "select place_id from placex where place_id in (".join(',',array_keys($aResultPlaceIDs)).") ";
1616                                                 $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1617                                                 if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1618                                                 if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
1619                                                 if (CONST_Use_US_Tiger_Data)
1620                                                 {
1621                                                         $sSQL .= ") UNION select place_id from location_property_tiger where place_id in (".join(',',array_keys($aResultPlaceIDs)).") ";
1622                                                         $sSQL .= "and (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1623                                                         if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',',$this->aAddressRankList).")";
1624                                                 }
1625                                                 $sSQL .= ") UNION select place_id from location_property_osmline where place_id in (".join(',',array_keys($aResultPlaceIDs)).")";
1626                                                 $sSQL .= " and (30 between $this->iMinAddressRank and $this->iMaxAddressRank)";
1627                                                 if (CONST_Debug) var_dump($sSQL);
1628                                                 $aFilteredPlaceIDs = chksql($this->oDB->getCol($sSQL));
1629                                                 $tempIDs = array();
1630                                                 foreach($aFilteredPlaceIDs as $placeID)
1631                                                 {
1632                                                         $tempIDs[$placeID] = $aResultPlaceIDs[$placeID];  //assign housenumber to placeID
1633                                                 }
1634                                                 $aResultPlaceIDs = $tempIDs;
1635                                         }
1636
1637                                         //exit;
1638                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1639                                         if ($iGroupLoop > 4) break;
1640                                         if ($iQueryLoop > 30) break;
1641                                 }
1642
1643                                 // Did we find anything?
1644                                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs))
1645                                 {
1646                                         $aSearchResults = $this->getDetails($aResultPlaceIDs);
1647                                 }
1648
1649                         }
1650                         else
1651                         {
1652                                 // Just interpret as a reverse geocode
1653                                 $oReverse = new ReverseGeocode($this->oDB);
1654                                 $oReverse->setZoom(18);
1655
1656                                 $aLookup = $oReverse->lookup((float)$this->aNearPoint[0],
1657                                                              (float)$this->aNearPoint[1],
1658                                                              false);
1659
1660                                 if (CONST_Debug) var_dump("Reverse search", $aLookup);
1661
1662                                 if ($aLookup['place_id'])
1663                                         $aSearchResults = $this->getDetails(array($aLookup['place_id'] => -1));
1664                                 else
1665                                         $aSearchResults = array();
1666                         }
1667
1668                         // No results? Done
1669                         if (!sizeof($aSearchResults))
1670                         {
1671                                 if ($this->bFallback)
1672                                 {
1673                                         if ($this->fallbackStructuredQuery())
1674                                         {
1675                                                 return $this->lookup();
1676                                         }
1677                                 }
1678
1679                                 return array();
1680                         }
1681
1682                         $aClassType = getClassTypesWithImportance();
1683                         $aRecheckWords = preg_split('/\b[\s,\\-]*/u',$sQuery);
1684                         foreach($aRecheckWords as $i => $sWord)
1685                         {
1686                                 if (!preg_match('/\pL/', $sWord)) unset($aRecheckWords[$i]);
1687                         }
1688
1689                         if (CONST_Debug) { echo '<i>Recheck words:<\i>'; var_dump($aRecheckWords); }
1690
1691                         $oPlaceLookup = new PlaceLookup($this->oDB);
1692                         $oPlaceLookup->setIncludePolygonAsPoints($this->bIncludePolygonAsPoints);
1693                         $oPlaceLookup->setIncludePolygonAsText($this->bIncludePolygonAsText);
1694                         $oPlaceLookup->setIncludePolygonAsGeoJSON($this->bIncludePolygonAsGeoJSON);
1695                         $oPlaceLookup->setIncludePolygonAsKML($this->bIncludePolygonAsKML);
1696                         $oPlaceLookup->setIncludePolygonAsSVG($this->bIncludePolygonAsSVG);
1697                         $oPlaceLookup->setPolygonSimplificationThreshold($this->fPolygonSimplificationThreshold);
1698
1699                         foreach($aSearchResults as $iResNum => $aResult)
1700                         {
1701                                 // Default
1702                                 $fDiameter = getResultDiameter($aResult);
1703
1704                                 $aOutlineResult = $oPlaceLookup->getOutlines($aResult['place_id'], $aResult['lon'], $aResult['lat'], $fDiameter/2);
1705                                 if ($aOutlineResult)
1706                                 {
1707                                         $aResult = array_merge($aResult, $aOutlineResult);
1708                                 }
1709
1710                                 if ($aResult['extra_place'] == 'city')
1711                                 {
1712                                         $aResult['class'] = 'place';
1713                                         $aResult['type'] = 'city';
1714                                         $aResult['rank_search'] = 16;
1715                                 }
1716
1717                                 // Is there an icon set for this type of result?
1718                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1719                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1720                                 {
1721                                         $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1722                                 }
1723
1724                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1725                                                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1726                                 {
1727                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1728                                 }
1729                                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1730                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1731                                 {
1732                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1733                                 }
1734                                 // if tag '&addressdetails=1' is set in query
1735                                 if ($this->bIncludeAddressDetails)
1736                                 {
1737                                         // getAddressDetails() is defined in lib.php and uses the SQL function get_addressdata in functions.sql
1738                                         $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code'], $aResultPlaceIDs[$aResult['place_id']]);
1739                                         if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city']))
1740                                         {
1741                                                 $aResult['address'] = array_merge(array('city' => array_shift(array_values($aResult['address']))), $aResult['address']);
1742                                         }
1743                                 }
1744                                 if ($this->bIncludeExtraTags)
1745                                 {
1746                                         if ($aResult['extra'])
1747                                         {
1748                                                 $aResult['sExtraTags'] = json_decode($aResult['extra']);
1749                                         }
1750                                         else
1751                                         {
1752                                                 $aResult['sExtraTags'] = (object) array();
1753                                         }
1754                                 }
1755
1756                                 if ($this->bIncludeNameDetails)
1757                                 {
1758                                         if ($aResult['names'])
1759                                         {
1760                                                 $aResult['sNameDetails'] = json_decode($aResult['names']);
1761                                         }
1762                                         else
1763                                         {
1764                                                 $aResult['sNameDetails'] = (object) array();
1765                                         }
1766                                 }
1767
1768                                 // Adjust importance for the number of exact string matches in the result
1769                                 $aResult['importance'] = max(0.001,$aResult['importance']);
1770                                 $iCountWords = 0;
1771                                 $sAddress = $aResult['langaddress'];
1772                                 foreach($aRecheckWords as $i => $sWord)
1773                                 {
1774                                         if (stripos($sAddress, $sWord)!==false)
1775                                         {
1776                                                 $iCountWords++;
1777                                                 if (preg_match("/(^|,)\s*".preg_quote($sWord, '/')."\s*(,|$)/", $sAddress)) $iCountWords += 0.1;
1778                                         }
1779                                 }
1780
1781                                 $aResult['importance'] = $aResult['importance'] + ($iCountWords*0.1); // 0.1 is a completely arbitrary number but something in the range 0.1 to 0.5 would seem right
1782
1783                                 $aResult['name'] = $aResult['langaddress'];
1784                                 // secondary ordering (for results with same importance (the smaller the better):
1785                                 //   - approximate importance of address parts
1786                                 $aResult['foundorder'] = -$aResult['addressimportance']/10;
1787                                 //   - number of exact matches from the query
1788                                 if (isset($this->exactMatchCache[$aResult['place_id']]))
1789                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['place_id']];
1790                                 else if (isset($this->exactMatchCache[$aResult['parent_place_id']]))
1791                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['parent_place_id']];
1792                                 //  - importance of the class/type
1793                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1794                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1795                                 {
1796                                         $aResult['foundorder'] += 0.0001 * $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1797                                 }
1798                                 else
1799                                 {
1800                                         $aResult['foundorder'] += 0.01;
1801                                 }
1802                                 if (CONST_Debug) { var_dump($aResult); }
1803                                 $aSearchResults[$iResNum] = $aResult;
1804                         }
1805                         uasort($aSearchResults, 'byImportance');
1806
1807                         $aOSMIDDone = array();
1808                         $aClassTypeNameDone = array();
1809                         $aToFilter = $aSearchResults;
1810                         $aSearchResults = array();
1811
1812                         $bFirst = true;
1813                         foreach($aToFilter as $iResNum => $aResult)
1814                         {
1815                                 $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1816                                 if ($bFirst)
1817                                 {
1818                                         $fLat = $aResult['lat'];
1819                                         $fLon = $aResult['lon'];
1820                                         if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1821                                         $bFirst = false;
1822                                 }
1823                                 if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1824                                                         && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']])))
1825                                 {
1826                                         $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1827                                         $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1828                                         $aSearchResults[] = $aResult;
1829                                 }
1830
1831                                 // Absolute limit on number of results
1832                                 if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1833                         }
1834
1835                         return $aSearchResults;
1836
1837                 } // end lookup()
1838
1839
1840         } // end class
1841