lib/Geocode.php

   1 <?php
   2         class Geocode
   3         {
   4                 protected $oDB;
   5
   6                 protected $aLangPrefOrder = array();
   7
   8                 protected $bIncludeAddressDetails = false;
   9
  10                 protected $bIncludePolygonAsPoints = false;
  11                 protected $bIncludePolygonAsText = false;
  12                 protected $bIncludePolygonAsGeoJSON = false;
  13                 protected $bIncludePolygonAsKML = false;
  14                 protected $bIncludePolygonAsSVG = false;
  15
  16                 protected $aExcludePlaceIDs = array();
  17                 protected $bDeDupe = true;
  18                 protected $bReverseInPlan = true;
  19
  20                 protected $iLimit = 20;
  21                 protected $iFinalLimit = 10;
  22                 protected $iOffset = 0;
  23                 protected $bFallback = false;
  24
  25                 protected $aCountryCodes = false;
  26                 protected $aNearPoint = false;
  27
  28                 protected $bBoundedSearch = false;
  29                 protected $aViewBox = false;
  30                 protected $sViewboxSmallSQL = false;
  31                 protected $sViewboxLargeSQL = false;
  32                 protected $aRoutePoints = false;
  33
  34                 protected $iMaxRank = 20;
  35                 protected $iMinAddressRank = 0;
  36                 protected $iMaxAddressRank = 30;
  37                 protected $aAddressRankList = array();
  38                 protected $exactMatchCache = array();
  39
  40                 protected $sAllowedTypesSQLList = false;
  41
  42                 protected $sQuery = false;
  43                 protected $aStructuredQuery = false;
  44
  45                 function Geocode(&$oDB)
  46                 {
  47                         $this->oDB =& $oDB;
  48                 }
  49
  50                 function setReverseInPlan($bReverse)
  51                 {
  52                         $this->bReverseInPlan = $bReverse;
  53                 }
  54
  55                 function setLanguagePreference($aLangPref)
  56                 {
  57                         $this->aLangPrefOrder = $aLangPref;
  58                 }
  59
  60                 function setIncludeAddressDetails($bAddressDetails = true)
  61                 {
  62                         $this->bIncludeAddressDetails = (bool)$bAddressDetails;
  63                 }
  64
  65                 function getIncludeAddressDetails()
  66                 {
  67                         return $this->bIncludeAddressDetails;
  68                 }
  69
  70                 function setIncludePolygonAsPoints($b = true)
  71                 {
  72                         $this->bIncludePolygonAsPoints = $b;
  73                 }
  74
  75                 function getIncludePolygonAsPoints()
  76                 {
  77                         return $this->bIncludePolygonAsPoints;
  78                 }
  79
  80                 function setIncludePolygonAsText($b = true)
  81                 {
  82                         $this->bIncludePolygonAsText = $b;
  83                 }
  84
  85                 function getIncludePolygonAsText()
  86                 {
  87                         return $this->bIncludePolygonAsText;
  88                 }
  89
  90                 function setIncludePolygonAsGeoJSON($b = true)
  91                 {
  92                         $this->bIncludePolygonAsGeoJSON = $b;
  93                 }
  94
  95                 function setIncludePolygonAsKML($b = true)
  96                 {
  97                         $this->bIncludePolygonAsKML = $b;
  98                 }
  99
 100                 function setIncludePolygonAsSVG($b = true)
 101                 {
 102                         $this->bIncludePolygonAsSVG = $b;
 103                 }
 104
 105                 function setDeDupe($bDeDupe = true)
 106                 {
 107                         $this->bDeDupe = (bool)$bDeDupe;
 108                 }
 109
 110                 function setLimit($iLimit = 10)
 111                 {
 112                         if ($iLimit > 50) $iLimit = 50;
 113                         if ($iLimit < 1) $iLimit = 1;
 114
 115                         $this->iFinalLimit = $iLimit;
 116                         $this->iLimit = $this->iFinalLimit + min($this->iFinalLimit, 10);
 117                 }
 118
 119                 function setOffset($iOffset = 0)
 120                 {
 121                         $this->iOffset = $iOffset;
 122                 }
 123
 124                 function setFallback($bFallback = true)
 125                 {
 126                         $this->bFallback = (bool)$bFallback;
 127                 }
 128
 129                 function setExcludedPlaceIDs($a)
 130                 {
 131                         // TODO: force to int
 132                         $this->aExcludePlaceIDs = $a;
 133                 }
 134
 135                 function getExcludedPlaceIDs()
 136                 {
 137                         return $this->aExcludePlaceIDs;
 138                 }
 139
 140                 function setBounded($bBoundedSearch = true)
 141                 {
 142                         $this->bBoundedSearch = (bool)$bBoundedSearch;
 143                 }
 144
 145                 function setViewBox($fLeft, $fBottom, $fRight, $fTop)
 146                 {
 147                         $this->aViewBox = array($fLeft, $fBottom, $fRight, $fTop);
 148                 }
 149
 150                 function getViewBoxString()
 151                 {
 152                         if (!$this->aViewBox) return null;
 153                         return $this->aViewBox[0].','.$this->aViewBox[3].','.$this->aViewBox[2].','.$this->aViewBox[1];
 154                 }
 155
 156                 function setRoute($aRoutePoints)
 157                 {
 158                         $this->aRoutePoints = $aRoutePoints;
 159                 }
 160
 161                 function setFeatureType($sFeatureType)
 162                 {
 163                         switch($sFeatureType)
 164                         {
 165                         case 'country':
 166                                 $this->setRankRange(4, 4);
 167                                 break;
 168                         case 'state':
 169                                 $this->setRankRange(8, 8);
 170                                 break;
 171                         case 'city':
 172                                 $this->setRankRange(14, 16);
 173                                 break;
 174                         case 'settlement':
 175                                 $this->setRankRange(8, 20);
 176                                 break;
 177                         }
 178                 }
 179
 180                 function setRankRange($iMin, $iMax)
 181                 {
 182                         $this->iMinAddressRank = (int)$iMin;
 183                         $this->iMaxAddressRank = (int)$iMax;
 184                 }
 185
 186                 function setNearPoint($aNearPoint, $fRadiusDeg = 0.1)
 187                 {
 188                         $this->aNearPoint = array((float)$aNearPoint[0], (float)$aNearPoint[1], (float)$fRadiusDeg);
 189                 }
 190
 191                 function setCountryCodesList($aCountryCodes)
 192                 {
 193                         $this->aCountryCodes = $aCountryCodes;
 194                 }
 195
 196                 function setQuery($sQueryString)
 197                 {
 198                         $this->sQuery = $sQueryString;
 199                         $this->aStructuredQuery = false;
 200                 }
 201
 202                 function getQueryString()
 203                 {
 204                         return $this->sQuery;
 205                 }
 206
 207
 208                 function loadParamArray($aParams)
 209                 {
 210                         if (isset($aParams['addressdetails'])) $this->bIncludeAddressDetails = (bool)$aParams['addressdetails'];
 211                         if (isset($aParams['bounded'])) $this->bBoundedSearch = (bool)$aParams['bounded'];
 212                         if (isset($aParams['dedupe'])) $this->bDeDupe = (bool)$aParams['dedupe'];
 213
 214                         if (isset($aParams['limit'])) $this->setLimit((int)$aParams['limit']);
 215                         if (isset($aParams['offset'])) $this->iOffset = (int)$aParams['offset'];
 216
 217                         if (isset($aParams['fallback'])) $this->bFallback = (bool)$aParams['fallback'];
 218
 219                         // List of excluded Place IDs - used for more acurate pageing
 220                         if (isset($aParams['exclude_place_ids']) && $aParams['exclude_place_ids'])
 221                         {
 222                                 foreach(explode(',',$aParams['exclude_place_ids']) as $iExcludedPlaceID)
 223                                 {
 224                                         $iExcludedPlaceID = (int)$iExcludedPlaceID;
 225                                         if ($iExcludedPlaceID) $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
 226                                 }
 227                                 $this->aExcludePlaceIDs = $aExcludePlaceIDs;
 228                         }
 229
 230                         // Only certain ranks of feature
 231                         if (isset($aParams['featureType'])) $this->setFeatureType($aParams['featureType']);
 232                         if (isset($aParams['featuretype'])) $this->setFeatureType($aParams['featuretype']);
 233
 234                         // Country code list
 235                         if (isset($aParams['countrycodes']))
 236                         {
 237                                 $aCountryCodes = array();
 238                                 foreach(explode(',',$aParams['countrycodes']) as $sCountryCode)
 239                                 {
 240                                         if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode))
 241                                         {
 242                                                 $aCountryCodes[] = strtolower($sCountryCode);
 243                                         }
 244                                 }
 245                                 $this->aCountryCodes = $aCountryCodes;
 246                         }
 247
 248                         if (isset($aParams['viewboxlbrt']) && $aParams['viewboxlbrt'])
 249                         {
 250                                 $aCoOrdinatesLBRT = explode(',',$aParams['viewboxlbrt']);
 251                                 $this->setViewBox($aCoOrdinatesLBRT[0], $aCoOrdinatesLBRT[1], $aCoOrdinatesLBRT[2], $aCoOrdinatesLBRT[3]);
 252                         }
 253                         else if (isset($aParams['viewbox']) && $aParams['viewbox'])
 254                         {
 255                                 $aCoOrdinatesLTRB = explode(',',$aParams['viewbox']);
 256                                 $this->setViewBox($aCoOrdinatesLTRB[0], $aCoOrdinatesLTRB[3], $aCoOrdinatesLTRB[2], $aCoOrdinatesLTRB[1]);
 257                         }
 258
 259                         if (isset($aParams['route']) && $aParams['route'] && isset($aParams['routewidth']) && $aParams['routewidth'])
 260                         {
 261                                 $aPoints = explode(',',$aParams['route']);
 262                                 if (sizeof($aPoints) % 2 != 0)
 263                                 {
 264                                         userError("Uneven number of points");
 265                                         exit;
 266                                 }
 267                                 $fPrevCoord = false;
 268                                 $aRoute = array();
 269                                 foreach($aPoints as $i => $fPoint)
 270                                 {
 271                                         if ($i%2)
 272                                         {
 273                                                 $aRoute[] = array((float)$fPoint, $fPrevCoord);
 274                                         }
 275                                         else
 276                                         {
 277                                                 $fPrevCoord = (float)$fPoint;
 278                                         }
 279                                 }
 280                                 $this->aRoutePoints = $aRoute;
 281                         }
 282                 }
 283
 284                 function setQueryFromParams($aParams)
 285                 {
 286                         // Search query
 287                         $sQuery = (isset($aParams['q'])?trim($aParams['q']):'');
 288                         if (!$sQuery)
 289                         {
 290                                 $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 291                                 $this->setReverseInPlan(false);
 292                         }
 293                         else
 294                         {
 295                                 $this->setQuery($sQuery);
 296                         }
 297                 }
 298
 299                 function loadStructuredAddressElement($sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 300                 {
 301                         $sValue = trim($sValue);
 302                         if (!$sValue) return false;
 303                         $this->aStructuredQuery[$sKey] = $sValue;
 304                         if ($this->iMinAddressRank == 0 && $this->iMaxAddressRank == 30)
 305                         {
 306                                 $this->iMinAddressRank = $iNewMinAddressRank;
 307                                 $this->iMaxAddressRank = $iNewMaxAddressRank;
 308                         }
 309                         if ($aItemListValues) $this->aAddressRankList = array_merge($this->aAddressRankList, $aItemListValues);
 310                         return true;
 311                 }
 312
 313                 function setStructuredQuery($sAmentiy = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 314                 {
 315                         $this->sQuery = false;
 316
 317                         // Reset
 318                         $this->iMinAddressRank = 0;
 319                         $this->iMaxAddressRank = 30;
 320                         $this->aAddressRankList = array();
 321
 322                         $this->aStructuredQuery = array();
 323                         $this->sAllowedTypesSQLList = '';
 324
 325                         $this->loadStructuredAddressElement($sAmentiy, 'amenity', 26, 30, false);
 326                         $this->loadStructuredAddressElement($sStreet, 'street', 26, 30, false);
 327                         $this->loadStructuredAddressElement($sCity, 'city', 14, 24, false);
 328                         $this->loadStructuredAddressElement($sCounty, 'county', 9, 13, false);
 329                         $this->loadStructuredAddressElement($sState, 'state', 8, 8, false);
 330                         $this->loadStructuredAddressElement($sPostalCode, 'postalcode' , 5, 11, array(5, 11));
 331                         $this->loadStructuredAddressElement($sCountry, 'country', 4, 4, false);
 332
 333                         if (sizeof($this->aStructuredQuery) > 0)
 334                         {
 335                                 $this->sQuery = join(', ', $this->aStructuredQuery);
 336                                 if ($this->iMaxAddressRank < 30)
 337                                 {
 338                                         $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 339                                 }
 340                         }
 341                 }
 342
 343                 function fallbackStructuredQuery()
 344                 {
 345                         if (!$this->aStructuredQuery) return false;
 346
 347                         $aParams = $this->aStructuredQuery;
 348
 349                         if (sizeof($aParams) == 1) return false;
 350
 351                         $aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
 352
 353                         foreach($aOrderToFallback as $sType)
 354                         {
 355                                 if (isset($aParams[$sType]))
 356                                 {
 357                                         unset($aParams[$sType]);
 358                                         $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 359                                         return true;
 360                                 }
 361                         }
 362
 363                         return false;
 364                 }
 365
 366                 function getDetails($aPlaceIDs)
 367                 {
 368                         if (sizeof($aPlaceIDs) == 0)  return array();
 369
 370                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 371
 372                         // Get the details for display (is this a redundant extra step?)
 373                         $sPlaceIDs = join(',',$aPlaceIDs);
 374
 375                         $sImportanceSQL = '';
 376                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxSmallSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 377                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxLargeSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 378
 379                         $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,";
 380                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 381                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
 382                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
 383                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 384                         $sSQL .= $sImportanceSQL."coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
 385                         $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, ";
 386                         $sSQL .= "(extratags->'place') as extra_place ";
 387                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
 388                         $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 389                         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
 390                         if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
 391                         $sSQL .= ") ";
 392                         if ($this->sAllowedTypesSQLList) $sSQL .= "and placex.class in $this->sAllowedTypesSQLList ";
 393                         $sSQL .= "and linked_place_id is null ";
 394                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
 395                         if (!$this->bDeDupe) $sSQL .= ",place_id";
 396                         $sSQL .= ",langaddress ";
 397                         $sSQL .= ",placename ";
 398                         $sSQL .= ",ref ";
 399                         $sSQL .= ",extratags->'place' ";
 400
 401                         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank)
 402                         {
 403                                 $sSQL .= " union ";
 404                                 $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,";
 405                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 406                                 $sSQL .= "null as placename,";
 407                                 $sSQL .= "null as ref,";
 408                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 409                                 $sSQL .= $sImportanceSQL."-1.15 as importance, ";
 410                                 $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_tiger.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 411                                 $sSQL .= "null as extra_place ";
 412                                 $sSQL .= "from location_property_tiger where place_id in ($sPlaceIDs) ";
 413                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 414                                 $sSQL .= "group by place_id";
 415                                 if (!$this->bDeDupe) $sSQL .= ",place_id ";
 416                                 /*
 417                                 $sSQL .= " union ";
 418                                 $sSQL .= "select 'L' 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,";
 419                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 420                                 $sSQL .= "null as placename,";
 421                                 $sSQL .= "null as ref,";
 422                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 423                                 $sSQL .= $sImportanceSQL."-1.10 as importance, ";
 424                                 $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, ";
 425                                 $sSQL .= "null as extra_place ";
 426                                 $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
 427                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 428                                 $sSQL .= "group by place_id";
 429                                 if (!$this->bDeDupe) $sSQL .= ",place_id";
 430                                 $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
 431                                 */
 432                         }
 433
 434                         $sSQL .= " order by importance desc";
 435                         if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
 436                         $aSearchResults = $this->oDB->getAll($sSQL);
 437
 438                         if (PEAR::IsError($aSearchResults))
 439                         {
 440                                 failInternalError("Could not get details for place.", $sSQL, $aSearchResults);
 441                         }
 442
 443                         return $aSearchResults;
 444                 }
 445
 446                 /* Perform the actual query lookup.
 447
 448                         Returns an ordered list of results, each with the following fields:
 449                           osm_type: type of corresponding OSM object
 450                                                         N - node
 451                                                         W - way
 452                                                         R - relation
 453                                                         P - postcode (internally computed)
 454                           osm_id: id of corresponding OSM object
 455                           class: general object class (corresponds to tag key of primary OSM tag)
 456                           type: subclass of object (corresponds to tag value of primary OSM tag)
 457                           admin_level: see http://wiki.openstreetmap.org/wiki/Admin_level
 458                           rank_search: rank in search hierarchy
 459                                                         (see also http://wiki.openstreetmap.org/wiki/Nominatim/Development_overview#Country_to_street_level)
 460                           rank_address: rank in address hierarchy (determines orer in address)
 461                           place_id: internal key (may differ between different instances)
 462                           country_code: ISO country code
 463                           langaddress: localized full address
 464                           placename: localized name of object
 465                           ref: content of ref tag (if available)
 466                           lon: longitude
 467                           lat: latitude
 468                           importance: importance of place based on Wikipedia link count
 469                           addressimportance: cumulated importance of address elements
 470                           extra_place: type of place (for admin boundaries, if there is a place tag)
 471                           aBoundingBox: bounding Box
 472                           label: short description of the object class/type (English only)
 473                           name: full name (currently the same as langaddress)
 474                           foundorder: secondary ordering for places with same importance
 475                 */
 476                 function lookup()
 477                 {
 478                         if (!$this->sQuery && !$this->aStructuredQuery) return false;
 479
 480                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 481
 482                         $sCountryCodesSQL = false;
 483                         if ($this->aCountryCodes && sizeof($this->aCountryCodes))
 484                         {
 485                                 $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 486                         }
 487
 488                         $sQuery = $this->sQuery;
 489
 490                         // Conflicts between US state abreviations and various words for 'the' in different languages
 491                         if (isset($this->aLangPrefOrder['name:en']))
 492                         {
 493                                 $sQuery = preg_replace('/(^|,)\s*il\s*(,|$)/','\1illinois\2', $sQuery);
 494                                 $sQuery = preg_replace('/(^|,)\s*al\s*(,|$)/','\1alabama\2', $sQuery);
 495                                 $sQuery = preg_replace('/(^|,)\s*la\s*(,|$)/','\1louisiana\2', $sQuery);
 496                         }
 497
 498                         // View Box SQL
 499                         $sViewboxCentreSQL = false;
 500                         $bBoundingBoxSearch = false;
 501                         if ($this->aViewBox)
 502                         {
 503                                 $fHeight = $this->aViewBox[0]-$this->aViewBox[2];
 504                                 $fWidth = $this->aViewBox[1]-$this->aViewBox[3];
 505                                 $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 506                                 $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 507                                 $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 508                                 $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 509
 510                                 $this->sViewboxSmallSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$this->aViewBox[0].",".(float)$this->aViewBox[1]."),ST_Point(".(float)$this->aViewBox[2].",".(float)$this->aViewBox[3].")),4326)";
 511                                 $this->sViewboxLargeSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$aBigViewBox[0].",".(float)$aBigViewBox[1]."),ST_Point(".(float)$aBigViewBox[2].",".(float)$aBigViewBox[3].")),4326)";
 512                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 513                         }
 514
 515                         // Route SQL
 516                         if ($this->aRoutePoints)
 517                         {
 518                                 $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 519                                 $bFirst = true;
 520                                 foreach($this->aRoutePoints as $aPoint)
 521                                 {
 522                                         if (!$bFirst) $sViewboxCentreSQL .= ",";
 523                                         $sViewboxCentreSQL .= $aPoint[1].' '.$aPoint[0];
 524                                         $bFirst = false;
 525                                 }
 526                                 $sViewboxCentreSQL .= ")'::geometry,4326)";
 527
 528                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/69).")";
 529                                 $this->sViewboxSmallSQL = $this->oDB->getOne($sSQL);
 530                                 if (PEAR::isError($this->sViewboxSmallSQL))
 531                                 {
 532                                         failInternalError("Could not get small viewbox.", $sSQL, $this->sViewboxSmallSQL);
 533                                 }
 534                                 $this->sViewboxSmallSQL = "'".$this->sViewboxSmallSQL."'::geometry";
 535
 536                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/30).")";
 537                                 $this->sViewboxLargeSQL = $this->oDB->getOne($sSQL);
 538                                 if (PEAR::isError($this->sViewboxLargeSQL))
 539                                 {
 540                                         failInternalError("Could not get large viewbox.", $sSQL, $this->sViewboxLargeSQL);
 541                                 }
 542                                 $this->sViewboxLargeSQL = "'".$this->sViewboxLargeSQL."'::geometry";
 543                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 544                         }
 545
 546                         // Do we have anything that looks like a lat/lon pair?
 547                         if (preg_match('/\\b([NS])[ ]+([0-9]+[0-9.]*)[ ]+([0-9.]+)?[, ]+([EW])[ ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?\\b/', $sQuery, $aData))
 548                         {
 549                                 $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
 550                                 $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
 551                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 552                                 {
 553                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 554                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 555                                 }
 556                         }
 557                         elseif (preg_match('/\\b([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([NS])[, ]+([0-9]+)[ ]+([0-9]+[0-9.]*)?[ ]+([EW])\\b/', $sQuery, $aData))
 558                         {
 559                                 $fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
 560                                 $fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
 561                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 562                                 {
 563                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 564                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 565                                 }
 566                         }
 567                         elseif (preg_match('/(\\[|^|\\b)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]|$|\\b)/', $sQuery, $aData))
 568                         {
 569                                 $fQueryLat = $aData[2];
 570                                 $fQueryLon = $aData[3];
 571                                 if ($fQueryLat <= 90.1 && $fQueryLat >= -90.1 && $fQueryLon <= 180.1 && $fQueryLon >= -180.1)
 572                                 {
 573                                         $this->setNearPoint(array($fQueryLat, $fQueryLon));
 574                                         $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
 575                                 }
 576                         }
 577
 578                         $aSearchResults = array();
 579                         if ($sQuery || $this->aStructuredQuery)
 580                         {
 581                                 // Start with a blank search
 582                                 $aSearches = array(
 583                                         array('iSearchRank' => 0, 'iNamePhrase' => -1, 'sCountryCode' => false, 'aName'=>array(), 'aAddress'=>array(), 'aFullNameAddress'=>array(),
 584                                               'aNameNonSearch'=>array(), 'aAddressNonSearch'=>array(),
 585                                               'sOperator'=>'', 'aFeatureName' => array(), 'sClass'=>'', 'sType'=>'', 'sHouseNumber'=>'', 'fLat'=>'', 'fLon'=>'', 'fRadius'=>'')
 586                                 );
 587
 588                                 // Do we have a radius search?
 589                                 $sNearPointSQL = false;
 590                                 if ($this->aNearPoint)
 591                                 {
 592                                         $sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$this->aNearPoint[1].",".(float)$this->aNearPoint[0]."),4326)";
 593                                         $aSearches[0]['fLat'] = (float)$this->aNearPoint[0];
 594                                         $aSearches[0]['fLon'] = (float)$this->aNearPoint[1];
 595                                         $aSearches[0]['fRadius'] = (float)$this->aNearPoint[2];
 596                                 }
 597
 598                                 // Any 'special' terms in the search?
 599                                 $bSpecialTerms = false;
 600                                 preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 601                                 $aSpecialTerms = array();
 602                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 603                                 {
 604                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 605                                         $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 606                                 }
 607
 608                                 preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 609                                 $aSpecialTerms = array();
 610                                 if (isset($aStructuredQuery['amenity']) && $aStructuredQuery['amenity'])
 611                                 {
 612                                         $aSpecialTermsRaw[] = array('['.$aStructuredQuery['amenity'].']', $aStructuredQuery['amenity']);
 613                                         unset($aStructuredQuery['amenity']);
 614                                 }
 615                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 616                                 {
 617                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 618                                         $sToken = $this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string");
 619                                         $sSQL = 'select * from (select word_id,word_token, word, class, type, country_code, operator';
 620                                         $sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 621                                         if (CONST_Debug) var_Dump($sSQL);
 622                                         $aSearchWords = $this->oDB->getAll($sSQL);
 623                                         $aNewSearches = array();
 624                                         foreach($aSearches as $aSearch)
 625                                         {
 626                                                 foreach($aSearchWords as $aSearchTerm)
 627                                                 {
 628                                                         $aNewSearch = $aSearch;
 629                                                         if ($aSearchTerm['country_code'])
 630                                                         {
 631                                                                 $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 632                                                                 $aNewSearches[] = $aNewSearch;
 633                                                                 $bSpecialTerms = true;
 634                                                         }
 635                                                         if ($aSearchTerm['class'])
 636                                                         {
 637                                                                 $aNewSearch['sClass'] = $aSearchTerm['class'];
 638                                                                 $aNewSearch['sType'] = $aSearchTerm['type'];
 639                                                                 $aNewSearches[] = $aNewSearch;
 640                                                                 $bSpecialTerms = true;
 641                                                         }
 642                                                 }
 643                                         }
 644                                         $aSearches = $aNewSearches;
 645                                 }
 646
 647                                 // Split query into phrases
 648                                 // Commas are used to reduce the search space by indicating where phrases split
 649                                 if ($this->aStructuredQuery)
 650                                 {
 651                                         $aPhrases = $this->aStructuredQuery;
 652                                         $bStructuredPhrases = true;
 653                                 }
 654                                 else
 655                                 {
 656                                         $aPhrases = explode(',',$sQuery);
 657                                         $bStructuredPhrases = false;
 658                                 }
 659
 660                                 // Convert each phrase to standard form
 661                                 // Create a list of standard words
 662                                 // Get all 'sets' of words
 663                                 // Generate a complete list of all
 664                                 $aTokens = array();
 665                                 foreach($aPhrases as $iPhrase => $sPhrase)
 666                                 {
 667                                         $aPhrase = $this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string");
 668                                         if (PEAR::isError($aPhrase))
 669                                         {
 670                                                 userError("Illegal query string (not an UTF-8 string): ".$sPhrase);
 671                                                 if (CONST_Debug) var_dump($aPhrase);
 672                                                 exit;
 673                                         }
 674                                         if (trim($aPhrase['string']))
 675                                         {
 676                                                 $aPhrases[$iPhrase] = $aPhrase;
 677                                                 $aPhrases[$iPhrase]['words'] = explode(' ',$aPhrases[$iPhrase]['string']);
 678                                                 $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
 679                                                 $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
 680                                         }
 681                                         else
 682                                         {
 683                                                 unset($aPhrases[$iPhrase]);
 684                                         }
 685                                 }
 686
 687                                 // Reindex phrases - we make assumptions later on that they are numerically keyed in order
 688                                 $aPhraseTypes = array_keys($aPhrases);
 689                                 $aPhrases = array_values($aPhrases);
 690
 691                                 if (sizeof($aTokens))
 692                                 {
 693                                         // Check which tokens we have, get the ID numbers
 694                                         $sSQL = 'select word_id,word_token, word, class, type, country_code, operator, search_name_count';
 695                                         $sSQL .= ' from word where word_token in ('.join(',',array_map("getDBQuoted",$aTokens)).')';
 696
 697                                         if (CONST_Debug) var_Dump($sSQL);
 698
 699                                         $aValidTokens = array();
 700                                         if (sizeof($aTokens)) $aDatabaseWords = $this->oDB->getAll($sSQL);
 701                                         else $aDatabaseWords = array();
 702                                         if (PEAR::IsError($aDatabaseWords))
 703                                         {
 704                                                 failInternalError("Could not get word tokens.", $sSQL, $aDatabaseWords);
 705                                         }
 706                                         $aPossibleMainWordIDs = array();
 707                                         $aWordFrequencyScores = array();
 708                                         foreach($aDatabaseWords as $aToken)
 709                                         {
 710                                                 // Very special case - require 2 letter country param to match the country code found
 711                                                 if ($bStructuredPhrases && $aToken['country_code'] && !empty($aStructuredQuery['country'])
 712                                                                 && strlen($aStructuredQuery['country']) == 2 && strtolower($aStructuredQuery['country']) != $aToken['country_code'])
 713                                                 {
 714                                                         continue;
 715                                                 }
 716
 717                                                 if (isset($aValidTokens[$aToken['word_token']]))
 718                                                 {
 719                                                         $aValidTokens[$aToken['word_token']][] = $aToken;
 720                                                 }
 721                                                 else
 722                                                 {
 723                                                         $aValidTokens[$aToken['word_token']] = array($aToken);
 724                                                 }
 725                                                 if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
 726                                                 $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
 727                                         }
 728                                         if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
 729
 730                                         // Try and calculate GB postcodes we might be missing
 731                                         foreach($aTokens as $sToken)
 732                                         {
 733                                                 // Source of gb postcodes is now definitive - always use
 734                                                 if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData))
 735                                                 {
 736                                                         if (substr($aData[1],-2,1) != ' ')
 737                                                         {
 738                                                                 $aData[0] = substr($aData[0],0,strlen($aData[1]-1)).' '.substr($aData[0],strlen($aData[1]-1));
 739                                                                 $aData[1] = substr($aData[1],0,-1).' '.substr($aData[1],-1,1);
 740                                                         }
 741                                                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
 742                                                         if ($aGBPostcodeLocation)
 743                                                         {
 744                                                                 $aValidTokens[$sToken] = $aGBPostcodeLocation;
 745                                                         }
 746                                                 }
 747                                                 // US ZIP+4 codes - if there is no token,
 748                                                 //      merge in the 5-digit ZIP code
 749                                                 else if (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData))
 750                                                 {
 751                                                         if (isset($aValidTokens[$aData[1]]))
 752                                                         {
 753                                                                 foreach($aValidTokens[$aData[1]] as $aToken)
 754                                                                 {
 755                                                                         if (!$aToken['class'])
 756                                                                         {
 757                                                                                 if (isset($aValidTokens[$sToken]))
 758                                                                                 {
 759                                                                                         $aValidTokens[$sToken][] = $aToken;
 760                                                                                 }
 761                                                                                 else
 762                                                                                 {
 763                                                                                         $aValidTokens[$sToken] = array($aToken);
 764                                                                                 }
 765                                                                         }
 766                                                                 }
 767                                                         }
 768                                                 }
 769                                         }
 770
 771                                         foreach($aTokens as $sToken)
 772                                         {
 773                                                 // Unknown single word token with a number - assume it is a house number
 774                                                 if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken,' ') === false && preg_match('/[0-9]/', $sToken))
 775                                                 {
 776                                                         $aValidTokens[' '.$sToken] = array(array('class'=>'place','type'=>'house'));
 777                                                 }
 778                                         }
 779
 780                                         // Any words that have failed completely?
 781                                         // TODO: suggestions
 782
 783                                         // Start the search process
 784                                         $aResultPlaceIDs = array();
 785
 786                                         /*
 787                                            Calculate all searches using aValidTokens i.e.
 788                                            'Wodsworth Road, Sheffield' =>
 789
 790                                            Phrase Wordset
 791                                            0      0       (wodsworth road)
 792                                            0      1       (wodsworth)(road)
 793                                            1      0       (sheffield)
 794
 795                                            Score how good the search is so they can be ordered
 796                                          */
 797                                         foreach($aPhrases as $iPhrase => $sPhrase)
 798                                         {
 799                                                 $aNewPhraseSearches = array();
 800                                                 if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 801                                                 else $sPhraseType = '';
 802
 803                                                 foreach($aPhrases[$iPhrase]['wordsets'] as $iWordSet => $aWordset)
 804                                                 {
 805                                                         // Too many permutations - too expensive
 806                                                         if ($iWordSet > 120) break;
 807
 808                                                         $aWordsetSearches = $aSearches;
 809
 810                                                         // Add all words from this wordset
 811                                                         foreach($aWordset as $iToken => $sToken)
 812                                                         {
 813                                                                 //echo "<br><b>$sToken</b>";
 814                                                                 $aNewWordsetSearches = array();
 815
 816                                                                 foreach($aWordsetSearches as $aCurrentSearch)
 817                                                                 {
 818                                                                         //echo "<i>";
 819                                                                         //var_dump($aCurrentSearch);
 820                                                                         //echo "</i>";
 821
 822                                                                         // If the token is valid
 823                                                                         if (isset($aValidTokens[' '.$sToken]))
 824                                                                         {
 825                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTerm)
 826                                                                                 {
 827                                                                                         $aSearch = $aCurrentSearch;
 828                                                                                         $aSearch['iSearchRank']++;
 829                                                                                         if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0')
 830                                                                                         {
 831                                                                                                 if ($aSearch['sCountryCode'] === false)
 832                                                                                                 {
 833                                                                                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 834                                                                                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 835                                                                                                         // If reverse order is enabled, it may appear at the beginning as well.
 836                                                                                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases)) &&
 837                                                                                                                         (!$this->bReverseInPlan || $iToken > 0 || $iPhrase > 0))
 838                                                                                                         {
 839                                                                                                                 $aSearch['iSearchRank'] += 5;
 840                                                                                                         }
 841                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 842                                                                                                 }
 843                                                                                         }
 844                                                                                         elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null)
 845                                                                                         {
 846                                                                                                 if ($aSearch['fLat'] === '')
 847                                                                                                 {
 848                                                                                                         $aSearch['fLat'] = $aSearchTerm['lat'];
 849                                                                                                         $aSearch['fLon'] = $aSearchTerm['lon'];
 850                                                                                                         $aSearch['fRadius'] = $aSearchTerm['radius'];
 851                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 852                                                                                                 }
 853                                                                                         }
 854                                                                                         elseif ($sPhraseType == 'postalcode')
 855                                                                                         {
 856                                                                                                 // 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
 857                                                                                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 858                                                                                                 {
 859                                                                                                         // If we already have a name try putting the postcode first
 860                                                                                                         if (sizeof($aSearch['aName']))
 861                                                                                                         {
 862                                                                                                                 $aNewSearch = $aSearch;
 863                                                                                                                 $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 864                                                                                                                 $aNewSearch['aName'] = array();
 865                                                                                                                 $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 866                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 867                                                                                                         }
 868
 869                                                                                                         if (sizeof($aSearch['aName']))
 870                                                                                                         {
 871                                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strlen($sToken) < 4 || strpos($sToken, ' ') !== false))
 872                                                                                                                 {
 873                                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 874                                                                                                                 }
 875                                                                                                                 else
 876                                                                                                                 {
 877                                                                                                                         $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 878                                                                                                                         $aSearch['iSearchRank'] += 1000; // skip;
 879                                                                                                                 }
 880                                                                                                         }
 881                                                                                                         else
 882                                                                                                         {
 883                                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 884                                                                                                                 //$aSearch['iNamePhrase'] = $iPhrase;
 885                                                                                                         }
 886                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 887                                                                                                 }
 888
 889                                                                                         }
 890                                                                                         elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house')
 891                                                                                         {
 892                                                                                                 if ($aSearch['sHouseNumber'] === '')
 893                                                                                                 {
 894                                                                                                         $aSearch['sHouseNumber'] = $sToken;
 895                                                                                                         // sanity check: if the housenumber is not mainly made
 896                                                                                                         // up of numbers, add a penalty
 897                                                                                                         if (preg_match_all("/[^0-9]/", $sToken, $aMatches) > 2) $aSearch['iSearchRank']++;
 898                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 899                                                                                                         /*
 900                                                                                                         // Fall back to not searching for this item (better than nothing)
 901                                                                                                         $aSearch = $aCurrentSearch;
 902                                                                                                         $aSearch['iSearchRank'] += 1;
 903                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 904                                                                                                          */
 905                                                                                                 }
 906                                                                                         }
 907                                                                                         elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null)
 908                                                                                         {
 909                                                                                                 if ($aSearch['sClass'] === '')
 910                                                                                                 {
 911                                                                                                         $aSearch['sOperator'] = $aSearchTerm['operator'];
 912                                                                                                         $aSearch['sClass'] = $aSearchTerm['class'];
 913                                                                                                         $aSearch['sType'] = $aSearchTerm['type'];
 914                                                                                                         if (sizeof($aSearch['aName'])) $aSearch['sOperator'] = 'name';
 915                                                                                                         else $aSearch['sOperator'] = 'near'; // near = in for the moment
 916                                                                                                         if (strlen($aSearchTerm['operator']) == 0) $aSearch['iSearchRank'] += 1;
 917
 918                                                                                                         // Do we have a shortcut id?
 919                                                                                                         if ($aSearch['sOperator'] == 'name')
 920                                                                                                         {
 921                                                                                                                 $sSQL = "select get_tagpair('".$aSearch['sClass']."', '".$aSearch['sType']."')";
 922                                                                                                                 if ($iAmenityID = $this->oDB->getOne($sSQL))
 923                                                                                                                 {
 924                                                                                                                         $aValidTokens[$aSearch['sClass'].':'.$aSearch['sType']] = array('word_id' => $iAmenityID);
 925                                                                                                                         $aSearch['aName'][$iAmenityID] = $iAmenityID;
 926                                                                                                                         $aSearch['sClass'] = '';
 927                                                                                                                         $aSearch['sType'] = '';
 928                                                                                                                 }
 929                                                                                                         }
 930                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 931                                                                                                 }
 932                                                                                         }
 933                                                                                         elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 934                                                                                         {
 935                                                                                                 if (sizeof($aSearch['aName']))
 936                                                                                                 {
 937                                                                                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strlen($sToken) < 4 || strpos($sToken, ' ') !== false))
 938                                                                                                         {
 939                                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 940                                                                                                         }
 941                                                                                                         else
 942                                                                                                         {
 943                                                                                                                 $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 944                                                                                                                 $aSearch['iSearchRank'] += 1000; // skip;
 945                                                                                                         }
 946                                                                                                 }
 947                                                                                                 else
 948                                                                                                 {
 949                                                                                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 950                                                                                                         //$aSearch['iNamePhrase'] = $iPhrase;
 951                                                                                                 }
 952                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 953                                                                                         }
 954                                                                                 }
 955                                                                         }
 956                                                                         if (isset($aValidTokens[$sToken]))
 957                                                                         {
 958                                                                                 // Allow searching for a word - but at extra cost
 959                                                                                 foreach($aValidTokens[$sToken] as $aSearchTerm)
 960                                                                                 {
 961                                                                                         if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 962                                                                                         {
 963                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strlen($sToken) >= 4)
 964                                                                                                 {
 965                                                                                                         $aSearch = $aCurrentSearch;
 966                                                                                                         $aSearch['iSearchRank'] += 1;
 967                                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 968                                                                                                         {
 969                                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 970                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 971                                                                                                         }
 972                                                                                                         elseif (isset($aValidTokens[' '.$sToken])) // revert to the token version?
 973                                                                                                         {
 974                                                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTermToken)
 975                                                                                                                 {
 976                                                                                                                         if (empty($aSearchTermToken['country_code'])
 977                                                                                                                                         && empty($aSearchTermToken['lat'])
 978                                                                                                                                         && empty($aSearchTermToken['class']))
 979                                                                                                                         {
 980                                                                                                                                 $aSearch = $aCurrentSearch;
 981                                                                                                                                 $aSearch['iSearchRank'] += 1;
 982                                                                                                                                 $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 983                                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 984                                                                                                                         }
 985                                                                                                                 }
 986                                                                                                         }
 987                                                                                                         else
 988                                                                                                         {
 989                                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 990                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 991                                                                                                         }
 992                                                                                                 }
 993
 994                                                                                                 if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase)
 995                                                                                                 {
 996                                                                                                         $aSearch = $aCurrentSearch;
 997                                                                                                         $aSearch['iSearchRank'] += 2;
 998                                                                                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 999                                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
1000                                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
1001                                                                                                         else
1002                                                                                                                 $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
1003                                                                                                         $aSearch['iNamePhrase'] = $iPhrase;
1004                                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
1005                                                                                                 }
1006                                                                                         }
1007                                                                                 }
1008                                                                         }
1009                                                                         else
1010                                                                         {
1011                                                                                 // Allow skipping a word - but at EXTREAM cost
1012                                                                                 //$aSearch = $aCurrentSearch;
1013                                                                                 //$aSearch['iSearchRank']+=100;
1014                                                                                 //$aNewWordsetSearches[] = $aSearch;
1015                                                                         }
1016                                                                 }
1017                                                                 // Sort and cut
1018                                                                 usort($aNewWordsetSearches, 'bySearchRank');
1019                                                                 $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
1020                                                         }
1021                                                         //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
1022
1023                                                         $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
1024                                                         usort($aNewPhraseSearches, 'bySearchRank');
1025
1026                                                         $aSearchHash = array();
1027                                                         foreach($aNewPhraseSearches as $iSearch => $aSearch)
1028                                                         {
1029                                                                 $sHash = serialize($aSearch);
1030                                                                 if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
1031                                                                 else $aSearchHash[$sHash] = 1;
1032                                                         }
1033
1034                                                         $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
1035                                                 }
1036
1037                                                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
1038                                                 $aGroupedSearches = array();
1039                                                 foreach($aNewPhraseSearches as $aSearch)
1040                                                 {
1041                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank)
1042                                                         {
1043                                                                 if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1044                                                                 $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1045                                                         }
1046                                                 }
1047                                                 ksort($aGroupedSearches);
1048
1049                                                 $iSearchCount = 0;
1050                                                 $aSearches = array();
1051                                                 foreach($aGroupedSearches as $iScore => $aNewSearches)
1052                                                 {
1053                                                         $iSearchCount += sizeof($aNewSearches);
1054                                                         $aSearches = array_merge($aSearches, $aNewSearches);
1055                                                         if ($iSearchCount > 50) break;
1056                                                 }
1057
1058                                                 //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1059
1060                                         }
1061
1062                                 }
1063                                 else
1064                                 {
1065                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
1066                                         $aGroupedSearches = array();
1067                                         foreach($aSearches as $aSearch)
1068                                         {
1069                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1070                                                 {
1071                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1072                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1073                                                 }
1074                                         }
1075                                         ksort($aGroupedSearches);
1076                                 }
1077
1078                                 if (CONST_Debug) var_Dump($aGroupedSearches);
1079
1080                                 if ($this->bReverseInPlan)
1081                                 {
1082                                         $aCopyGroupedSearches = $aGroupedSearches;
1083                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
1084                                         {
1085                                                 foreach($aSearches as $iSearch => $aSearch)
1086                                                 {
1087                                                         if (sizeof($aSearch['aAddress']))
1088                                                         {
1089                                                                 $iReverseItem = array_pop($aSearch['aAddress']);
1090                                                                 if (isset($aPossibleMainWordIDs[$iReverseItem]))
1091                                                                 {
1092                                                                         $aSearch['aAddress'] = array_merge($aSearch['aAddress'], $aSearch['aName']);
1093                                                                         $aSearch['aName'] = array($iReverseItem);
1094                                                                         $aGroupedSearches[$iGroup][] = $aSearch;
1095                                                                 }
1096                                                                 //$aReverseSearch['aName'][$iReverseItem] = $iReverseItem;
1097                                                                 //$aGroupedSearches[$iGroup][] = $aReverseSearch;
1098                                                         }
1099                                                 }
1100                                         }
1101                                 }
1102
1103                                 if (CONST_Search_TryDroppedAddressTerms && sizeof($aStructuredQuery) > 0)
1104                                 {
1105                                         $aCopyGroupedSearches = $aGroupedSearches;
1106                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
1107                                         {
1108                                                 foreach($aSearches as $iSearch => $aSearch)
1109                                                 {
1110                                                         $aReductionsList = array($aSearch['aAddress']);
1111                                                         $iSearchRank = $aSearch['iSearchRank'];
1112                                                         while(sizeof($aReductionsList) > 0)
1113                                                         {
1114                                                                 $iSearchRank += 5;
1115                                                                 if ($iSearchRank > iMaxRank) break 3;
1116                                                                 $aNewReductionsList = array();
1117                                                                 foreach($aReductionsList as $aReductionsWordList)
1118                                                                 {
1119                                                                         for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++)
1120                                                                         {
1121                                                                                 $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
1122                                                                                 $aReverseSearch = $aSearch;
1123                                                                                 $aSearch['aAddress'] = $aReductionsWordListResult;
1124                                                                                 $aSearch['iSearchRank'] = $iSearchRank;
1125                                                                                 $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
1126                                                                                 if (sizeof($aReductionsWordListResult) > 0)
1127                                                                                 {
1128                                                                                         $aNewReductionsList[] = $aReductionsWordListResult;
1129                                                                                 }
1130                                                                         }
1131                                                                 }
1132                                                                 $aReductionsList = $aNewReductionsList;
1133                                                         }
1134                                                 }
1135                                         }
1136                                         ksort($aGroupedSearches);
1137                                 }
1138
1139                                 // Filter out duplicate searches
1140                                 $aSearchHash = array();
1141                                 foreach($aGroupedSearches as $iGroup => $aSearches)
1142                                 {
1143                                         foreach($aSearches as $iSearch => $aSearch)
1144                                         {
1145                                                 $sHash = serialize($aSearch);
1146                                                 if (isset($aSearchHash[$sHash]))
1147                                                 {
1148                                                         unset($aGroupedSearches[$iGroup][$iSearch]);
1149                                                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
1150                                                 }
1151                                                 else
1152                                                 {
1153                                                         $aSearchHash[$sHash] = 1;
1154                                                 }
1155                                         }
1156                                 }
1157
1158                                 if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1159
1160                                 $iGroupLoop = 0;
1161                                 $iQueryLoop = 0;
1162                                 foreach($aGroupedSearches as $iGroupedRank => $aSearches)
1163                                 {
1164                                         $iGroupLoop++;
1165                                         foreach($aSearches as $aSearch)
1166                                         {
1167                                                 $iQueryLoop++;
1168
1169                                                 if (CONST_Debug) { echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>"; }
1170                                                 if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1171
1172                                                 // No location term?
1173                                                 if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['fLon'])
1174                                                 {
1175                                                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber'])
1176                                                         {
1177                                                                 // Just looking for a country by code - look it up
1178                                                                 if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank)
1179                                                                 {
1180                                                                         $sSQL = "select place_id from placex where calculated_country_code='".$aSearch['sCountryCode']."' and rank_search = 4";
1181                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1182                                                                         $sSQL .= " order by st_area(geometry) desc limit 1";
1183                                                                         if (CONST_Debug) var_dump($sSQL);
1184                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1185                                                                 }
1186                                                                 else
1187                                                                 {
1188                                                                         $aPlaceIDs = array();
1189                                                                 }
1190                                                         }
1191                                                         else
1192                                                         {
1193                                                                 if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
1194                                                                 if (!$aSearch['sClass']) continue;
1195                                                                 $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1196                                                                 if ($this->oDB->getOne($sSQL))
1197                                                                 {
1198                                                                         $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1199                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1200                                                                         $sSQL .= " where st_contains($this->sViewboxSmallSQL, ct.centroid)";
1201                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1202                                                                         if (sizeof($this->aExcludePlaceIDs))
1203                                                                         {
1204                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1205                                                                         }
1206                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1207                                                                         $sSQL .= " limit $this->iLimit";
1208                                                                         if (CONST_Debug) var_dump($sSQL);
1209                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1210
1211                                                                         // If excluded place IDs are given, it is fair to assume that
1212                                                                         // there have been results in the small box, so no further
1213                                                                         // expansion in that case.
1214                                                                         // Also don't expand if bounded results were requested.
1215                                                                         if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs) && !$this->bBoundedSearch)
1216                                                                         {
1217                                                                                 $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1218                                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1219                                                                                 $sSQL .= " where st_contains($this->sViewboxLargeSQL, ct.centroid)";
1220                                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1221                                                                                 if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1222                                                                                 $sSQL .= " limit $this->iLimit";
1223                                                                                 if (CONST_Debug) var_dump($sSQL);
1224                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1225                                                                         }
1226                                                                 }
1227                                                                 else
1228                                                                 {
1229                                                                         $sSQL = "select place_id from placex where class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1230                                                                         $sSQL .= " and st_contains($this->sViewboxSmallSQL, geometry) and linked_place_id is null";
1231                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1232                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, centroid) asc";
1233                                                                         $sSQL .= " limit $this->iLimit";
1234                                                                         if (CONST_Debug) var_dump($sSQL);
1235                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1236                                                                 }
1237                                                         }
1238                                                 }
1239                                                 else
1240                                                 {
1241                                                         $aPlaceIDs = array();
1242
1243                                                         // First we need a position, either aName or fLat or both
1244                                                         $aTerms = array();
1245                                                         $aOrder = array();
1246
1247                                                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1248                                                         // they might be right - but they are just too darned expensive to run
1249                                                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
1250                                                         //if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'],",")."]";
1251                                                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress'])
1252                                                         {
1253                                                                 // For infrequent name terms disable index usage for address
1254                                                                 if (CONST_Search_NameOnlySearchFrequencyThreshold &&
1255                                                                                 sizeof($aSearch['aName']) == 1 &&
1256                                                                                 $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold)
1257                                                                 {
1258                                                                         //$aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'],$aSearch['aAddressNonSearch']),",")."]";
1259                                                                         $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddress'],",")."]";
1260                                                                 }
1261                                                                 else
1262                                                                 {
1263                                                                         $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'],",")."]";
1264                                                                         //if (sizeof($aSearch['aAddressNonSearch'])) $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'],",")."]";
1265                                                                 }
1266                                                         }
1267                                                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1268                                                         if ($aSearch['sHouseNumber']) $aTerms[] = "address_rank between 16 and 27";
1269                                                         if ($aSearch['fLon'] && $aSearch['fLat'])
1270                                                         {
1271                                                                 $aTerms[] = "ST_DWithin(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326), ".$aSearch['fRadius'].")";
1272                                                                 $aOrder[] = "ST_Distance(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326)) ASC";
1273                                                         }
1274                                                         if (sizeof($this->aExcludePlaceIDs))
1275                                                         {
1276                                                                 $aTerms[] = "place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1277                                                         }
1278                                                         if ($sCountryCodesSQL)
1279                                                         {
1280                                                                 $aTerms[] = "country_code in ($sCountryCodesSQL)";
1281                                                         }
1282
1283                                                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
1284                                                         if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) asc";
1285
1286                                                         if ($aSearch['sHouseNumber'])
1287                                                         {
1288                                                                 $sImportanceSQL = '- abs(26 - address_rank) + 3';
1289                                                         }
1290                                                         else
1291                                                         {
1292                                                                 $sImportanceSQL = '(case when importance = 0 OR importance IS NULL then 0.75-(search_rank::float/40) else importance end)';
1293                                                         }
1294                                                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1295                                                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1296
1297                                                         $aOrder[] = "$sImportanceSQL DESC";
1298                                                         if (sizeof($aSearch['aFullNameAddress']))
1299                                                         {
1300                                                                 $sExactMatchSQL = '(select count(*) from (select unnest(ARRAY['.join($aSearch['aFullNameAddress'],",").']) INTERSECT select unnest(nameaddress_vector))s) as exactmatch';
1301                                                                 $aOrder[] = 'exactmatch DESC';
1302                                                         } else {
1303                                                                 $sExactMatchSQL = '0::int as exactmatch';
1304                                                         }
1305
1306                                                         if (sizeof($aTerms))
1307                                                         {
1308                                                                 $sSQL = "select place_id, ";
1309                                                                 $sSQL .= $sExactMatchSQL;
1310                                                                 $sSQL .= " from search_name";
1311                                                                 $sSQL .= " where ".join(' and ',$aTerms);
1312                                                                 $sSQL .= " order by ".join(', ',$aOrder);
1313                                                                 if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
1314                                                                         $sSQL .= " limit 50";
1315                                                                 elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
1316                                                                         $sSQL .= " limit 1";
1317                                                                 else
1318                                                                         $sSQL .= " limit ".$this->iLimit;
1319
1320                                                                 if (CONST_Debug) { var_dump($sSQL); }
1321                                                                 $aViewBoxPlaceIDs = $this->oDB->getAll($sSQL);
1322                                                                 if (PEAR::IsError($aViewBoxPlaceIDs))
1323                                                                 {
1324                                                                         failInternalError("Could not get places for search terms.", $sSQL, $aViewBoxPlaceIDs);
1325                                                                 }
1326                                                                 //var_dump($aViewBoxPlaceIDs);
1327                                                                 // Did we have an viewbox matches?
1328                                                                 $aPlaceIDs = array();
1329                                                                 $bViewBoxMatch = false;
1330                                                                 foreach($aViewBoxPlaceIDs as $aViewBoxRow)
1331                                                                 {
1332                                                                         //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1333                                                                         //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1334                                                                         //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1335                                                                         //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1336                                                                         $aPlaceIDs[] = $aViewBoxRow['place_id'];
1337                                                                         $this->exactMatchCache[$aViewBoxRow['place_id']] = $aViewBoxRow['exactmatch'];
1338                                                                 }
1339                                                         }
1340                                                         //var_Dump($aPlaceIDs);
1341                                                         //exit;
1342
1343                                                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs))
1344                                                         {
1345                                                                 $aRoadPlaceIDs = $aPlaceIDs;
1346                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1347
1348                                                                 // Now they are indexed look for a house attached to a street we found
1349                                                                 $sHouseNumberRegex = '\\\\m'.str_replace(' ','[-,/ ]',$aSearch['sHouseNumber']).'\\\\M';
1350                                                                 $sSQL = "select place_id from placex where parent_place_id in (".$sPlaceIDs.") and housenumber ~* E'".$sHouseNumberRegex."'";
1351                                                                 if (sizeof($this->aExcludePlaceIDs))
1352                                                                 {
1353                                                                         $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1354                                                                 }
1355                                                                 $sSQL .= " limit $this->iLimit";
1356                                                                 if (CONST_Debug) var_dump($sSQL);
1357                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1358
1359                                                                 // If not try the aux fallback table
1360                                                                 /*
1361                                                                 if (!sizeof($aPlaceIDs))
1362                                                                 {
1363                                                                         $sSQL = "select place_id from location_property_aux where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1364                                                                         if (sizeof($this->aExcludePlaceIDs))
1365                                                                         {
1366                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1367                                                                         }
1368                                                                         //$sSQL .= " limit $this->iLimit";
1369                                                                         if (CONST_Debug) var_dump($sSQL);
1370                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1371                                                                 }
1372                                                                 */
1373
1374                                                                 if (!sizeof($aPlaceIDs))
1375                                                                 {
1376                                                                         $sSQL = "select place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1377                                                                         if (sizeof($this->aExcludePlaceIDs))
1378                                                                         {
1379                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1380                                                                         }
1381                                                                         //$sSQL .= " limit $this->iLimit";
1382                                                                         if (CONST_Debug) var_dump($sSQL);
1383                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1384                                                                 }
1385
1386                                                                 // Fallback to the road
1387                                                                 if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber']))
1388                                                                 {
1389                                                                         $aPlaceIDs = $aRoadPlaceIDs;
1390                                                                 }
1391
1392                                                         }
1393
1394                                                         if ($aSearch['sClass'] && sizeof($aPlaceIDs))
1395                                                         {
1396                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1397                                                                 $aClassPlaceIDs = array();
1398
1399                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name')
1400                                                                 {
1401                                                                         // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1402                                                                         $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1403                                                                         $sSQL .= " and linked_place_id is null";
1404                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1405                                                                         $sSQL .= " order by rank_search asc limit $this->iLimit";
1406                                                                         if (CONST_Debug) var_dump($sSQL);
1407                                                                         $aClassPlaceIDs = $this->oDB->getCol($sSQL);
1408                                                                 }
1409
1410                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
1411                                                                 {
1412                                                                         $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1413                                                                         $bCacheTable = $this->oDB->getOne($sSQL);
1414
1415                                                                         $sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";
1416
1417                                                                         if (CONST_Debug) var_dump($sSQL);
1418                                                                         $this->iMaxRank = ((int)$this->oDB->getOne($sSQL));
1419
1420                                                                         // For state / country level searches the normal radius search doesn't work very well
1421                                                                         $sPlaceGeom = false;
1422                                                                         if ($this->iMaxRank < 9 && $bCacheTable)
1423                                                                         {
1424                                                                                 // Try and get a polygon to search in instead
1425                                                                                 $sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
1426                                                                                 if (CONST_Debug) var_dump($sSQL);
1427                                                                                 $sPlaceGeom = $this->oDB->getOne($sSQL);
1428                                                                         }
1429
1430                                                                         if ($sPlaceGeom)
1431                                                                         {
1432                                                                                 $sPlaceIDs = false;
1433                                                                         }
1434                                                                         else
1435                                                                         {
1436                                                                                 $this->iMaxRank += 5;
1437                                                                                 $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1438                                                                                 if (CONST_Debug) var_dump($sSQL);
1439                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1440                                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1441                                                                         }
1442
1443                                                                         if ($sPlaceIDs || $sPlaceGeom)
1444                                                                         {
1445
1446                                                                                 $fRange = 0.01;
1447                                                                                 if ($bCacheTable)
1448                                                                                 {
1449                                                                                         // More efficient - can make the range bigger
1450                                                                                         $fRange = 0.05;
1451
1452                                                                                         $sOrderBySQL = '';
1453                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
1454                                                                                         else if ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1455                                                                                         else if ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1456
1457                                                                                         $sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
1458                                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1459                                                                                         if ($sPlaceIDs)
1460                                                                                         {
1461                                                                                                 $sSQL .= ",placex as f where ";
1462                                                                                                 $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1463                                                                                         }
1464                                                                                         if ($sPlaceGeom)
1465                                                                                         {
1466                                                                                                 $sSQL .= " where ";
1467                                                                                                 $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1468                                                                                         }
1469                                                                                         if (sizeof($this->aExcludePlaceIDs))
1470                                                                                         {
1471                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1472                                                                                         }
1473                                                                                         if ($sCountryCodesSQL) $sSQL .= " and lp.calculated_country_code in ($sCountryCodesSQL)";
1474                                                                                         if ($sOrderBySQL) $sSQL .= "order by ".$sOrderBySQL." asc";
1475                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1476                                                                                         $sSQL .= " limit $this->iLimit";
1477                                                                                         if (CONST_Debug) var_dump($sSQL);
1478                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1479                                                                                 }
1480                                                                                 else
1481                                                                                 {
1482                                                                                         if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
1483
1484                                                                                         $sOrderBySQL = '';
1485                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
1486                                                                                         else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1487
1488                                                                                         $sSQL = "select distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'')." from placex as l,placex as f where ";
1489                                                                                         $sSQL .= "f.place_id in ( $sPlaceIDs) and ST_DWithin(l.geometry, f.centroid, $fRange) ";
1490                                                                                         $sSQL .= "and l.class='".$aSearch['sClass']."' and l.type='".$aSearch['sType']."' ";
1491                                                                                         if (sizeof($this->aExcludePlaceIDs))
1492                                                                                         {
1493                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1494                                                                                         }
1495                                                                                         if ($sCountryCodesSQL) $sSQL .= " and l.calculated_country_code in ($sCountryCodesSQL)";
1496                                                                                         if ($sOrderBy) $sSQL .= "order by ".$OrderBysSQL." asc";
1497                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1498                                                                                         $sSQL .= " limit $this->iLimit";
1499                                                                                         if (CONST_Debug) var_dump($sSQL);
1500                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1501                                                                                 }
1502                                                                         }
1503                                                                 }
1504
1505                                                                 $aPlaceIDs = $aClassPlaceIDs;
1506
1507                                                         }
1508
1509                                                 }
1510
1511                                                 if (PEAR::IsError($aPlaceIDs))
1512                                                 {
1513                                                         failInternalError("Could not get place IDs from tokens." ,$sSQL, $aPlaceIDs);
1514                                                 }
1515
1516                                                 if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }
1517
1518                                                 foreach($aPlaceIDs as $iPlaceID)
1519                                                 {
1520                                                         $aResultPlaceIDs[$iPlaceID] = $iPlaceID;
1521                                                 }
1522                                                 if ($iQueryLoop > 20) break;
1523                                         }
1524
1525                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30))
1526                                         {
1527                                                 // Need to verify passes rank limits before dropping out of the loop (yuk!)
1528                                                 $sSQL = "select place_id from placex where place_id in (".join(',',$aResultPlaceIDs).") ";
1529                                                 $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1530                                                 if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1531                                                 if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
1532                                                 $sSQL .= ") UNION select place_id from location_property_tiger where place_id in (".join(',',$aResultPlaceIDs).") ";
1533                                                 $sSQL .= "and (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1534                                                 if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',',$this->aAddressRankList).")";
1535                                                 $sSQL .= ")";
1536                                                 if (CONST_Debug) var_dump($sSQL);
1537                                                 $aResultPlaceIDs = $this->oDB->getCol($sSQL);
1538                                         }
1539
1540                                         //exit;
1541                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1542                                         if ($iGroupLoop > 4) break;
1543                                         if ($iQueryLoop > 30) break;
1544                                 }
1545
1546                                 // Did we find anything?
1547                                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs))
1548                                 {
1549                                         $aSearchResults = $this->getDetails($aResultPlaceIDs);
1550                                 }
1551
1552                         }
1553                         else
1554                         {
1555                                 // Just interpret as a reverse geocode
1556                                 $iPlaceID = geocodeReverse((float)$this->aNearPoint[0], (float)$this->aNearPoint[1]);
1557                                 if ($iPlaceID)
1558                                         $aSearchResults = $this->getDetails(array($iPlaceID));
1559                                 else
1560                                         $aSearchResults = array();
1561                         }
1562
1563                         // No results? Done
1564                         if (!sizeof($aSearchResults))
1565                         {
1566                                 if ($this->bFallback)
1567                                 {
1568                                         if ($this->fallbackStructuredQuery())
1569                                         {
1570                                                 return $this->lookup();
1571                                         }
1572                                 }
1573
1574                                 return array();
1575                         }
1576
1577                         $aClassType = getClassTypesWithImportance();
1578                         $aRecheckWords = preg_split('/\b[\s,\\-]*/u',$sQuery);
1579                         foreach($aRecheckWords as $i => $sWord)
1580                         {
1581                                 if (!$sWord) unset($aRecheckWords[$i]);
1582                         }
1583
1584                         foreach($aSearchResults as $iResNum => $aResult)
1585                         {
1586                                 if (CONST_Search_AreaPolygons)
1587                                 {
1588                                         // Get the bounding box and outline polygon
1589                                         $sSQL = "select place_id,0 as numfeatures,st_area(geometry) as area,";
1590                                         $sSQL .= "ST_Y(centroid) as centrelat,ST_X(centroid) as centrelon,";
1591                                         $sSQL .= "ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),4)) as minlat,ST_Y(ST_PointN(ST_ExteriorRing(Box2D(geometry)),2)) as maxlat,";
1592                                         $sSQL .= "ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),1)) as minlon,ST_X(ST_PointN(ST_ExteriorRing(Box2D(geometry)),3)) as maxlon";
1593                                         if ($this->bIncludePolygonAsGeoJSON) $sSQL .= ",ST_AsGeoJSON(geometry) as asgeojson";
1594                                         if ($this->bIncludePolygonAsKML) $sSQL .= ",ST_AsKML(geometry) as askml";
1595                                         if ($this->bIncludePolygonAsSVG) $sSQL .= ",ST_AsSVG(geometry) as assvg";
1596                                         if ($this->bIncludePolygonAsText || $this->bIncludePolygonAsPoints) $sSQL .= ",ST_AsText(geometry) as astext";
1597                                         $sSQL .= " from placex where place_id = ".$aResult['place_id'].' and st_geometrytype(Box2D(geometry)) = \'ST_Polygon\'';
1598                                         $aPointPolygon = $this->oDB->getRow($sSQL);
1599                                         if (PEAR::IsError($aPointPolygon))
1600                                         {
1601                                                 failInternalError("Could not get outline.", $sSQL, $aPointPolygon);
1602                                         }
1603
1604                                         if ($aPointPolygon['place_id'])
1605                                         {
1606                                                 if ($this->bIncludePolygonAsGeoJSON) $aResult['asgeojson'] = $aPointPolygon['asgeojson'];
1607                                                 if ($this->bIncludePolygonAsKML) $aResult['askml'] = $aPointPolygon['askml'];
1608                                                 if ($this->bIncludePolygonAsSVG) $aResult['assvg'] = $aPointPolygon['assvg'];
1609                                                 if ($this->bIncludePolygonAsText) $aResult['astext'] = $aPointPolygon['astext'];
1610
1611                                                 if ($aPointPolygon['centrelon'] !== null && $aPointPolygon['centrelat'] !== null )
1612                                                 {
1613                                                         $aResult['lat'] = $aPointPolygon['centrelat'];
1614                                                         $aResult['lon'] = $aPointPolygon['centrelon'];
1615                                                 }
1616
1617                                                 if ($this->bIncludePolygonAsPoints)
1618                                                 {
1619                                                         // Translate geometary string to point array
1620                                                         if (preg_match('#POLYGON\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1621                                                         {
1622                                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1623                                                         }
1624                             /*
1625                                                         elseif (preg_match('#MULTIPOLYGON\\(\\(\\(([- 0-9.,]+)#',$aPointPolygon['astext'],$aMatch))
1626                                                         {
1627                                                                 preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/',$aMatch[1],$aPolyPoints,PREG_SET_ORDER);
1628                                                         }
1629                             */
1630                                                         elseif (preg_match('#POINT\\((-?[0-9.]+) (-?[0-9.]+)\\)#',$aPointPolygon['astext'],$aMatch))
1631                                                         {
1632                                                                 $fRadius = 0.01;
1633                                                                 $iSteps = ($fRadius * 40000)^2;
1634                                                                 $fStepSize = (2*pi())/$iSteps;
1635                                                                 $aPolyPoints = array();
1636                                                                 for($f = 0; $f < 2*pi(); $f += $fStepSize)
1637                                                                 {
1638                                                                         $aPolyPoints[] = array('',$aMatch[1]+($fRadius*sin($f)),$aMatch[2]+($fRadius*cos($f)));
1639                                                                 }
1640                                                                 $aPointPolygon['minlat'] = $aPointPolygon['minlat'] - $fRadius;
1641                                                                 $aPointPolygon['maxlat'] = $aPointPolygon['maxlat'] + $fRadius;
1642                                                                 $aPointPolygon['minlon'] = $aPointPolygon['minlon'] - $fRadius;
1643                                                                 $aPointPolygon['maxlon'] = $aPointPolygon['maxlon'] + $fRadius;
1644                                                         }
1645                                                 }
1646
1647                                                 // Output data suitable for display (points and a bounding box)
1648                                                 if ($this->bIncludePolygonAsPoints && isset($aPolyPoints))
1649                                                 {
1650                                                         $aResult['aPolyPoints'] = array();
1651                                                         foreach($aPolyPoints as $aPoint)
1652                                                         {
1653                                                                 $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1654                                                         }
1655                                                 }
1656                                                 $aResult['aBoundingBox'] = array($aPointPolygon['minlat'],$aPointPolygon['maxlat'],$aPointPolygon['minlon'],$aPointPolygon['maxlon']);
1657                                         }
1658                                 }
1659
1660                                 if ($aResult['extra_place'] == 'city')
1661                                 {
1662                                         $aResult['class'] = 'place';
1663                                         $aResult['type'] = 'city';
1664                                         $aResult['rank_search'] = 16;
1665                                 }
1666
1667                                 if (!isset($aResult['aBoundingBox']))
1668                                 {
1669                                         // Default
1670                                         $fDiameter = 0.0001;
1671
1672                                         if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1673                                                         && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1674                                         {
1675                                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defzoom'];
1676                                         }
1677                                         elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1678                                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1679                                         {
1680                                                 $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'];
1681                                         }
1682                                         $fRadius = $fDiameter / 2;
1683
1684                                         $iSteps = max(8,min(100,$fRadius * 3.14 * 100000));
1685                                         $fStepSize = (2*pi())/$iSteps;
1686                                         $aPolyPoints = array();
1687                                         for($f = 0; $f < 2*pi(); $f += $fStepSize)
1688                                         {
1689                                                 $aPolyPoints[] = array('',$aResult['lon']+($fRadius*sin($f)),$aResult['lat']+($fRadius*cos($f)));
1690                                         }
1691                                         $aPointPolygon['minlat'] = $aResult['lat'] - $fRadius;
1692                                         $aPointPolygon['maxlat'] = $aResult['lat'] + $fRadius;
1693                                         $aPointPolygon['minlon'] = $aResult['lon'] - $fRadius;
1694                                         $aPointPolygon['maxlon'] = $aResult['lon'] + $fRadius;
1695
1696                                         // Output data suitable for display (points and a bounding box)
1697                                         if ($this->bIncludePolygonAsPoints)
1698                                         {
1699                                                 $aResult['aPolyPoints'] = array();
1700                                                 foreach($aPolyPoints as $aPoint)
1701                                                 {
1702                                                         $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1703                                                 }
1704                                         }
1705                                         $aResult['aBoundingBox'] = array((string)$aPointPolygon['minlat'],(string)$aPointPolygon['maxlat'],(string)$aPointPolygon['minlon'],(string)$aPointPolygon['maxlon']);
1706                                 }
1707
1708                                 // Is there an icon set for this type of result?
1709                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1710                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1711                                 {
1712                                         $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1713                                 }
1714
1715                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1716                                                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1717                                 {
1718                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1719                                 }
1720                                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1721                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1722                                 {
1723                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1724                                 }
1725
1726                                 if ($this->bIncludeAddressDetails)
1727                                 {
1728                                         $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code']);
1729                                         if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city']))
1730                                         {
1731                                                 $aResult['address'] = array_merge(array('city' => array_shift(array_values($aResult['address']))), $aResult['address']);
1732                                         }
1733                                 }
1734
1735                                 // Adjust importance for the number of exact string matches in the result
1736                                 $aResult['importance'] = max(0.001,$aResult['importance']);
1737                                 $iCountWords = 0;
1738                                 $sAddress = $aResult['langaddress'];
1739                                 foreach($aRecheckWords as $i => $sWord)
1740                                 {
1741                                         if (stripos($sAddress, $sWord)!==false)
1742                                         {
1743                                                 $iCountWords++;
1744                                                 if (preg_match("/(^|,)\s*$sWord\s*(,|$)/", $sAddress)) $iCountWords += 0.1;
1745                                         }
1746                                 }
1747
1748                                 $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
1749
1750                                 $aResult['name'] = $aResult['langaddress'];
1751                                 // secondary ordering (for results with same importance (the smaller the better):
1752                                 //   - approximate importance of address parts
1753                                 $aResult['foundorder'] = -$aResult['addressimportance']/10;
1754                                 //   - number of exact matches from the query
1755                                 if (isset($this->exactMatchCache[$aResult['place_id']]))
1756                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['place_id']];
1757                                 else if (isset($this->exactMatchCache[$aResult['parent_place_id']]))
1758                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['parent_place_id']];
1759                                 //  - importance of the class/type
1760                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1761                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1762                                 {
1763                                         $aResult['foundorder'] = $aResult['foundorder'] + 0.000001 * $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1764                                 }
1765                                 else
1766                                 {
1767                                         $aResult['foundorder'] = $aResult['foundorder'] + 0.001;
1768                                 }
1769                                 $aSearchResults[$iResNum] = $aResult;
1770                         }
1771                         uasort($aSearchResults, 'byImportance');
1772
1773                         $aOSMIDDone = array();
1774                         $aClassTypeNameDone = array();
1775                         $aToFilter = $aSearchResults;
1776                         $aSearchResults = array();
1777
1778                         $bFirst = true;
1779                         foreach($aToFilter as $iResNum => $aResult)
1780                         {
1781                                 if ($aResult['type'] == 'adminitrative') $aResult['type'] = 'administrative';
1782                                 $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1783                                 if ($bFirst)
1784                                 {
1785                                         $fLat = $aResult['lat'];
1786                                         $fLon = $aResult['lon'];
1787                                         if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1788                                         $bFirst = false;
1789                                 }
1790                                 if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1791                                                         && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']])))
1792                                 {
1793                                         $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1794                                         $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1795                                         $aSearchResults[] = $aResult;
1796                                 }
1797
1798                                 // Absolute limit on number of results
1799                                 if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1800                         }
1801
1802                         return $aSearchResults;
1803
1804                 } // end lookup()
1805
1806
1807         } // end class
1808