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