lib/Geocode.php

   1 <?php
   2
   3 namespace Nominatim;
   4
   5 require_once(CONST_BasePath.'/lib/NearPoint.php');
   6 require_once(CONST_BasePath.'/lib/PlaceLookup.php');
   7 require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
   8
   9 class Geocode
  10 {
  11     protected $oDB;
  12
  13     protected $aLangPrefOrder = array();
  14
  15     protected $bIncludeAddressDetails = false;
  16     protected $bIncludeExtraTags = false;
  17     protected $bIncludeNameDetails = false;
  18
  19     protected $bIncludePolygonAsPoints = false;
  20     protected $bIncludePolygonAsText = false;
  21     protected $bIncludePolygonAsGeoJSON = false;
  22     protected $bIncludePolygonAsKML = false;
  23     protected $bIncludePolygonAsSVG = false;
  24     protected $fPolygonSimplificationThreshold = 0.0;
  25
  26     protected $aExcludePlaceIDs = array();
  27     protected $bDeDupe = true;
  28     protected $bReverseInPlan = false;
  29
  30     protected $iLimit = 20;
  31     protected $iFinalLimit = 10;
  32     protected $iOffset = 0;
  33     protected $bFallback = false;
  34
  35     protected $aCountryCodes = false;
  36
  37     protected $bBoundedSearch = false;
  38     protected $aViewBox = false;
  39     protected $sViewboxCentreSQL = false;
  40     protected $sViewboxSmallSQL = false;
  41     protected $sViewboxLargeSQL = false;
  42
  43     protected $iMaxRank = 20;
  44     protected $iMinAddressRank = 0;
  45     protected $iMaxAddressRank = 30;
  46     protected $aAddressRankList = array();
  47     protected $exactMatchCache = array();
  48
  49     protected $sAllowedTypesSQLList = false;
  50
  51     protected $sQuery = false;
  52     protected $aStructuredQuery = false;
  53
  54
  55     public function __construct(&$oDB)
  56     {
  57         $this->oDB =& $oDB;
  58     }
  59
  60     public function setReverseInPlan($bReverse)
  61     {
  62         $this->bReverseInPlan = $bReverse;
  63     }
  64
  65     public function setLanguagePreference($aLangPref)
  66     {
  67         $this->aLangPrefOrder = $aLangPref;
  68     }
  69
  70     public function getMoreUrlParams()
  71     {
  72         if ($this->aStructuredQuery) {
  73             $aParams = $this->aStructuredQuery;
  74         } else {
  75             $aParams = array('q' => $this->sQuery);
  76         }
  77
  78         if ($this->aExcludePlaceIDs) {
  79             $aParams['exclude_place_ids'] = implode(',', $this->aExcludePlaceIDs);
  80         }
  81
  82         if ($this->bIncludeAddressDetails) $aParams['addressdetails'] = '1';
  83         if ($this->bIncludeExtraTags) $aParams['extratags'] = '1';
  84         if ($this->bIncludeNameDetails) $aParams['namedetails'] = '1';
  85
  86         if ($this->bIncludePolygonAsPoints) $aParams['polygon'] = '1';
  87         if ($this->bIncludePolygonAsText) $aParams['polygon_text'] = '1';
  88         if ($this->bIncludePolygonAsGeoJSON) $aParams['polygon_geojson'] = '1';
  89         if ($this->bIncludePolygonAsKML) $aParams['polygon_kml'] = '1';
  90         if ($this->bIncludePolygonAsSVG) $aParams['polygon_svg'] = '1';
  91
  92         if ($this->fPolygonSimplificationThreshold > 0.0) {
  93             $aParams['polygon_threshold'] = $this->fPolygonSimplificationThreshold;
  94         }
  95
  96         if ($this->bBoundedSearch) $aParams['bounded'] = '1';
  97         if (!$this->bDeDupe) $aParams['dedupe'] = '0';
  98
  99         if ($this->aCountryCodes) {
 100             $aParams['countrycodes'] = implode(',', $this->aCountryCodes);
 101         }
 102
 103         if ($this->aViewBox) {
 104             $aParams['viewbox'] = $this->aViewBox[0].','.$this->aViewBox[3]
 105                                   .','.$this->aViewBox[2].','.$this->aViewBox[1];
 106         }
 107
 108         return $aParams;
 109     }
 110
 111     public function setIncludePolygonAsPoints($b = true)
 112     {
 113         $this->bIncludePolygonAsPoints = $b;
 114     }
 115
 116     public function setIncludePolygonAsText($b = true)
 117     {
 118         $this->bIncludePolygonAsText = $b;
 119     }
 120
 121     public function setIncludePolygonAsGeoJSON($b = true)
 122     {
 123         $this->bIncludePolygonAsGeoJSON = $b;
 124     }
 125
 126     public function setIncludePolygonAsKML($b = true)
 127     {
 128         $this->bIncludePolygonAsKML = $b;
 129     }
 130
 131     public function setIncludePolygonAsSVG($b = true)
 132     {
 133         $this->bIncludePolygonAsSVG = $b;
 134     }
 135
 136     public function setPolygonSimplificationThreshold($f)
 137     {
 138         $this->fPolygonSimplificationThreshold = $f;
 139     }
 140
 141     public function setLimit($iLimit = 10)
 142     {
 143         if ($iLimit > 50) $iLimit = 50;
 144         if ($iLimit < 1) $iLimit = 1;
 145
 146         $this->iFinalLimit = $iLimit;
 147         $this->iLimit = $iLimit + min($iLimit, 10);
 148     }
 149
 150     public function setFeatureType($sFeatureType)
 151     {
 152         switch ($sFeatureType) {
 153             case 'country':
 154                 $this->setRankRange(4, 4);
 155                 break;
 156             case 'state':
 157                 $this->setRankRange(8, 8);
 158                 break;
 159             case 'city':
 160                 $this->setRankRange(14, 16);
 161                 break;
 162             case 'settlement':
 163                 $this->setRankRange(8, 20);
 164                 break;
 165         }
 166     }
 167
 168     public function setRankRange($iMin, $iMax)
 169     {
 170         $this->iMinAddressRank = $iMin;
 171         $this->iMaxAddressRank = $iMax;
 172     }
 173
 174     public function setRoute($aRoutePoints, $fRouteWidth)
 175     {
 176         $this->aViewBox = false;
 177
 178         $this->sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 179         $sSep = '';
 180         foreach ($aRoutePoints as $aPoint) {
 181             $fPoint = (float)$aPoint;
 182             $this->sViewboxCentreSQL .= $sSep.$fPoint;
 183             $sSep = ($sSep == ' ') ? ',' : ' ';
 184         }
 185         $this->sViewboxCentreSQL .= ")'::geometry,4326)";
 186
 187         $this->sViewboxSmallSQL = 'ST_BUFFER('.$this->sViewboxCentreSQL;
 188         $this->sViewboxSmallSQL .= ','.($fRouteWidth/69).')';
 189
 190         $this->sViewboxLargeSQL = 'ST_BUFFER('.$this->sViewboxCentreSQL;
 191         $this->sViewboxLargeSQL .= ','.($fRouteWidth/30).')';
 192     }
 193
 194     public function setViewbox($aViewbox)
 195     {
 196         $this->aViewBox = array_map('floatval', $aViewbox);
 197
 198         $this->aViewBox[0] = max(-180.0, min(180, $this->aViewBox[0]));
 199         $this->aViewBox[1] = max(-90.0, min(90, $this->aViewBox[1]));
 200         $this->aViewBox[2] = max(-180.0, min(180, $this->aViewBox[2]));
 201         $this->aViewBox[3] = max(-90.0, min(90, $this->aViewBox[3]));
 202
 203         if (abs($this->aViewBox[0] - $this->aViewBox[2]) < 0.000000001
 204             || abs($this->aViewBox[1] - $this->aViewBox[3]) < 0.000000001
 205         ) {
 206             userError("Bad parameter 'viewbox'. Not a box.");
 207         }
 208
 209         $fHeight = $this->aViewBox[0] - $this->aViewBox[2];
 210         $fWidth = $this->aViewBox[1] - $this->aViewBox[3];
 211         $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 212         $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 213         $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 214         $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 215
 216         $this->sViewboxCentreSQL = false;
 217         $this->sViewboxSmallSQL = sprintf(
 218             'ST_SetSRID(ST_MakeBox2D(ST_Point(%F,%F),ST_Point(%F,%F)),4326)',
 219             $this->aViewBox[0],
 220             $this->aViewBox[1],
 221             $this->aViewBox[2],
 222             $this->aViewBox[3]
 223         );
 224         $this->sViewboxLargeSQL = sprintf(
 225             'ST_SetSRID(ST_MakeBox2D(ST_Point(%F,%F),ST_Point(%F,%F)),4326)',
 226             $aBigViewBox[0],
 227             $aBigViewBox[1],
 228             $aBigViewBox[2],
 229             $aBigViewBox[3]
 230         );
 231     }
 232
 233     public function setQuery($sQueryString)
 234     {
 235         $this->sQuery = $sQueryString;
 236         $this->aStructuredQuery = false;
 237     }
 238
 239     public function getQueryString()
 240     {
 241         return $this->sQuery;
 242     }
 243
 244
 245     public function loadParamArray($oParams)
 246     {
 247         $this->bIncludeAddressDetails
 248          = $oParams->getBool('addressdetails', $this->bIncludeAddressDetails);
 249         $this->bIncludeExtraTags
 250          = $oParams->getBool('extratags', $this->bIncludeExtraTags);
 251         $this->bIncludeNameDetails
 252          = $oParams->getBool('namedetails', $this->bIncludeNameDetails);
 253
 254         $this->bBoundedSearch = $oParams->getBool('bounded', $this->bBoundedSearch);
 255         $this->bDeDupe = $oParams->getBool('dedupe', $this->bDeDupe);
 256
 257         $this->setLimit($oParams->getInt('limit', $this->iFinalLimit));
 258         $this->iOffset = $oParams->getInt('offset', $this->iOffset);
 259
 260         $this->bFallback = $oParams->getBool('fallback', $this->bFallback);
 261
 262         // List of excluded Place IDs - used for more acurate pageing
 263         $sExcluded = $oParams->getStringList('exclude_place_ids');
 264         if ($sExcluded) {
 265             foreach ($sExcluded as $iExcludedPlaceID) {
 266                 $iExcludedPlaceID = (int)$iExcludedPlaceID;
 267                 if ($iExcludedPlaceID)
 268                     $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
 269             }
 270
 271             if (isset($aExcludePlaceIDs))
 272                 $this->aExcludePlaceIDs = $aExcludePlaceIDs;
 273         }
 274
 275         // Only certain ranks of feature
 276         $sFeatureType = $oParams->getString('featureType');
 277         if (!$sFeatureType) $sFeatureType = $oParams->getString('featuretype');
 278         if ($sFeatureType) $this->setFeatureType($sFeatureType);
 279
 280         // Country code list
 281         $sCountries = $oParams->getStringList('countrycodes');
 282         if ($sCountries) {
 283             foreach ($sCountries as $sCountryCode) {
 284                 if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode)) {
 285                     $aCountries[] = strtolower($sCountryCode);
 286                 }
 287             }
 288             if (isset($aCountries))
 289                 $this->aCountryCodes = $aCountries;
 290         }
 291
 292         $aViewbox = $oParams->getStringList('viewboxlbrt');
 293         if ($aViewbox) {
 294             if (count($aViewbox) != 4) {
 295                 userError("Bad parmater 'viewbox'. Expected 4 coordinates.");
 296             }
 297             $this->setViewbox($aViewbox);
 298         } else {
 299             $aViewbox = $oParams->getStringList('viewbox');
 300             if ($aViewbox) {
 301                 if (count($aViewbox) != 4) {
 302                     userError("Bad parmater 'viewbox'. Expected 4 coordinates.");
 303                 }
 304                 $this->setViewBox(array(
 305                                    $aViewbox[0],
 306                                    $aViewbox[3],
 307                                    $aViewbox[2],
 308                                    $aViewbox[1]
 309                                   ));
 310             } else {
 311                 $aRoute = $oParams->getStringList('route');
 312                 $fRouteWidth = $oParams->getFloat('routewidth');
 313                 if ($aRoute && $fRouteWidth) {
 314                     $this->setRoute($aRoute, $fRouteWidth);
 315                 }
 316             }
 317         }
 318     }
 319
 320     public function setQueryFromParams($oParams)
 321     {
 322         // Search query
 323         $sQuery = $oParams->getString('q');
 324         if (!$sQuery) {
 325             $this->setStructuredQuery(
 326                 $oParams->getString('amenity'),
 327                 $oParams->getString('street'),
 328                 $oParams->getString('city'),
 329                 $oParams->getString('county'),
 330                 $oParams->getString('state'),
 331                 $oParams->getString('country'),
 332                 $oParams->getString('postalcode')
 333             );
 334             $this->setReverseInPlan(false);
 335         } else {
 336             $this->setQuery($sQuery);
 337         }
 338     }
 339
 340     public function loadStructuredAddressElement($sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 341     {
 342         $sValue = trim($sValue);
 343         if (!$sValue) return false;
 344         $this->aStructuredQuery[$sKey] = $sValue;
 345         if ($this->iMinAddressRank == 0 && $this->iMaxAddressRank == 30) {
 346             $this->iMinAddressRank = $iNewMinAddressRank;
 347             $this->iMaxAddressRank = $iNewMaxAddressRank;
 348         }
 349         if ($aItemListValues) $this->aAddressRankList = array_merge($this->aAddressRankList, $aItemListValues);
 350         return true;
 351     }
 352
 353     public function setStructuredQuery($sAmenity = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 354     {
 355         $this->sQuery = false;
 356
 357         // Reset
 358         $this->iMinAddressRank = 0;
 359         $this->iMaxAddressRank = 30;
 360         $this->aAddressRankList = array();
 361
 362         $this->aStructuredQuery = array();
 363         $this->sAllowedTypesSQLList = '';
 364
 365         $this->loadStructuredAddressElement($sAmenity, 'amenity', 26, 30, false);
 366         $this->loadStructuredAddressElement($sStreet, 'street', 26, 30, false);
 367         $this->loadStructuredAddressElement($sCity, 'city', 14, 24, false);
 368         $this->loadStructuredAddressElement($sCounty, 'county', 9, 13, false);
 369         $this->loadStructuredAddressElement($sState, 'state', 8, 8, false);
 370         $this->loadStructuredAddressElement($sPostalCode, 'postalcode', 5, 11, array(5, 11));
 371         $this->loadStructuredAddressElement($sCountry, 'country', 4, 4, false);
 372
 373         if (sizeof($this->aStructuredQuery) > 0) {
 374             $this->sQuery = join(', ', $this->aStructuredQuery);
 375             if ($this->iMaxAddressRank < 30) {
 376                 $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 377             }
 378         }
 379     }
 380
 381     public function fallbackStructuredQuery()
 382     {
 383         if (!$this->aStructuredQuery) return false;
 384
 385         $aParams = $this->aStructuredQuery;
 386
 387         if (sizeof($aParams) == 1) return false;
 388
 389         $aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
 390
 391         foreach ($aOrderToFallback as $sType) {
 392             if (isset($aParams[$sType])) {
 393                 unset($aParams[$sType]);
 394                 $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 395                 return true;
 396             }
 397         }
 398
 399         return false;
 400     }
 401
 402     public function getDetails($aPlaceIDs)
 403     {
 404         //$aPlaceIDs is an array with key: placeID and value: tiger-housenumber, if found, else -1
 405         if (sizeof($aPlaceIDs) == 0) return array();
 406
 407         $sLanguagePrefArraySQL = "ARRAY[".join(',', array_map("getDBQuoted", $this->aLangPrefOrder))."]";
 408
 409         // Get the details for display (is this a redundant extra step?)
 410         $sPlaceIDs = join(',', array_keys($aPlaceIDs));
 411
 412         $sImportanceSQL = '';
 413         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " CASE WHEN ST_Contains($this->sViewboxSmallSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 414         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " CASE WHEN ST_Contains($this->sViewboxLargeSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 415
 416         $sSQL  = "SELECT ";
 417         $sSQL .= "    osm_type,";
 418         $sSQL .= "    osm_id,";
 419         $sSQL .= "    class,";
 420         $sSQL .= "    type,";
 421         $sSQL .= "    admin_level,";
 422         $sSQL .= "    rank_search,";
 423         $sSQL .= "    rank_address,";
 424         $sSQL .= "    min(place_id) AS place_id, ";
 425         $sSQL .= "    min(parent_place_id) AS parent_place_id, ";
 426         $sSQL .= "    country_code, ";
 427         $sSQL .= "    get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) AS langaddress,";
 428         $sSQL .= "    get_name_by_language(name, $sLanguagePrefArraySQL) AS placename,";
 429         $sSQL .= "    get_name_by_language(name, ARRAY['ref']) AS ref,";
 430         if ($this->bIncludeExtraTags) $sSQL .= "hstore_to_json(extratags)::text AS extra,";
 431         if ($this->bIncludeNameDetails) $sSQL .= "hstore_to_json(name)::text AS names,";
 432         $sSQL .= "    avg(ST_X(centroid)) AS lon, ";
 433         $sSQL .= "    avg(ST_Y(centroid)) AS lat, ";
 434         $sSQL .= "    ".$sImportanceSQL."COALESCE(importance,0.75-(rank_search::float/40)) AS importance, ";
 435         $sSQL .= "    ( ";
 436         $sSQL .= "       SELECT max(p.importance*(p.rank_address+2))";
 437         $sSQL .= "       FROM ";
 438         $sSQL .= "         place_addressline s, ";
 439         $sSQL .= "         placex p";
 440         $sSQL .= "       WHERE s.place_id = min(CASE WHEN placex.rank_search < 28 THEN placex.place_id ELSE placex.parent_place_id END)";
 441         $sSQL .= "         AND p.place_id = s.address_place_id ";
 442         $sSQL .= "         AND s.isaddress ";
 443         $sSQL .= "         AND p.importance is not null ";
 444         $sSQL .= "    ) AS addressimportance, ";
 445         $sSQL .= "    (extratags->'place') AS extra_place ";
 446         $sSQL .= " FROM placex";
 447         $sSQL .= " WHERE place_id in ($sPlaceIDs) ";
 448         $sSQL .= "   AND (";
 449         $sSQL .= "            placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 450         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) {
 451             $sSQL .= "        OR (extratags->'place') = 'city'";
 452         }
 453         if ($this->aAddressRankList) {
 454             $sSQL .= "        OR placex.rank_address in (".join(',', $this->aAddressRankList).")";
 455         }
 456         $sSQL .= "       ) ";
 457         if ($this->sAllowedTypesSQLList) {
 458             $sSQL .= "AND placex.class in $this->sAllowedTypesSQLList ";
 459         }
 460         $sSQL .= "    AND linked_place_id is null ";
 461         $sSQL .= " GROUP BY ";
 462         $sSQL .= "     osm_type, ";
 463         $sSQL .= "     osm_id, ";
 464         $sSQL .= "     class, ";
 465         $sSQL .= "     type, ";
 466         $sSQL .= "     admin_level, ";
 467         $sSQL .= "     rank_search, ";
 468         $sSQL .= "     rank_address, ";
 469         $sSQL .= "     country_code, ";
 470         $sSQL .= "     importance, ";
 471         if (!$this->bDeDupe) $sSQL .= "place_id,";
 472         $sSQL .= "     langaddress, ";
 473         $sSQL .= "     placename, ";
 474         $sSQL .= "     ref, ";
 475         if ($this->bIncludeExtraTags) $sSQL .= "extratags, ";
 476         if ($this->bIncludeNameDetails) $sSQL .= "name, ";
 477         $sSQL .= "     extratags->'place' ";
 478
 479         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank) {
 480             // only Tiger housenumbers and interpolation lines need to be interpolated, because they are saved as lines
 481             // with start- and endnumber, the common osm housenumbers are usually saved as points
 482             $sHousenumbers = "";
 483             $i = 0;
 484             $length = count($aPlaceIDs);
 485             foreach ($aPlaceIDs as $placeID => $housenumber) {
 486                 $i++;
 487                 $sHousenumbers .= "(".$placeID.", ".$housenumber.")";
 488                 if ($i<$length) $sHousenumbers .= ", ";
 489             }
 490
 491             if (CONST_Use_US_Tiger_Data) {
 492                 // Tiger search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 493                 $sSQL .= " union";
 494                 $sSQL .= " SELECT ";
 495                 $sSQL .= "     'T' AS osm_type, ";
 496                 $sSQL .= "     (SELECT osm_id from placex p WHERE p.place_id=min(blub.parent_place_id)) as osm_id, ";
 497                 $sSQL .= "     'place' AS class, ";
 498                 $sSQL .= "     'house' AS type, ";
 499                 $sSQL .= "     null AS admin_level, ";
 500                 $sSQL .= "     30 AS rank_search, ";
 501                 $sSQL .= "     30 AS rank_address, ";
 502                 $sSQL .= "     min(place_id) AS place_id, ";
 503                 $sSQL .= "     min(parent_place_id) AS parent_place_id, ";
 504                 $sSQL .= "     'us' AS country_code, ";
 505                 $sSQL .= "     get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) AS langaddress,";
 506                 $sSQL .= "     null AS placename, ";
 507                 $sSQL .= "     null AS ref, ";
 508                 if ($this->bIncludeExtraTags) $sSQL .= "null AS extra,";
 509                 if ($this->bIncludeNameDetails) $sSQL .= "null AS names,";
 510                 $sSQL .= "     avg(st_x(centroid)) AS lon, ";
 511                 $sSQL .= "     avg(st_y(centroid)) AS lat,";
 512                 $sSQL .= "     ".$sImportanceSQL."-1.15 AS importance, ";
 513                 $sSQL .= "     (";
 514                 $sSQL .= "        SELECT max(p.importance*(p.rank_address+2))";
 515                 $sSQL .= "        FROM ";
 516                 $sSQL .= "          place_addressline s, ";
 517                 $sSQL .= "          placex p";
 518                 $sSQL .= "        WHERE s.place_id = min(blub.parent_place_id)";
 519                 $sSQL .= "          AND p.place_id = s.address_place_id ";
 520                 $sSQL .= "          AND s.isaddress";
 521                 $sSQL .= "          AND p.importance is not null";
 522                 $sSQL .= "     ) AS addressimportance, ";
 523                 $sSQL .= "     null AS extra_place ";
 524                 $sSQL .= " FROM (";
 525                 $sSQL .= "     SELECT place_id, ";    // interpolate the Tiger housenumbers here
 526                 $sSQL .= "         ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) AS centroid, ";
 527                 $sSQL .= "         parent_place_id, ";
 528                 $sSQL .= "         housenumber_for_place";
 529                 $sSQL .= "     FROM (";
 530                 $sSQL .= "            location_property_tiger ";
 531                 $sSQL .= "            JOIN (values ".$sHousenumbers.") AS housenumbers(place_id, housenumber_for_place) USING(place_id)) ";
 532                 $sSQL .= "     WHERE ";
 533                 $sSQL .= "         housenumber_for_place>=0";
 534                 $sSQL .= "         AND 30 between $this->iMinAddressRank AND $this->iMaxAddressRank";
 535                 $sSQL .= " ) AS blub"; //postgres wants an alias here
 536                 $sSQL .= " GROUP BY";
 537                 $sSQL .= "      place_id, ";
 538                 $sSQL .= "      housenumber_for_place"; //is this group by really needed?, place_id + housenumber (in combination) are unique
 539                 if (!$this->bDeDupe) $sSQL .= ", place_id ";
 540             }
 541             // osmline
 542             // interpolation line search only if a housenumber was searched and if it was found (i.e. aPlaceIDs[placeID] = housenumber != -1) (realized through a join)
 543             $sSQL .= " UNION ";
 544             $sSQL .= "SELECT ";
 545             $sSQL .= "  'W' AS osm_type, ";
 546             $sSQL .= "  osm_id, ";
 547             $sSQL .= "  'place' AS class, ";
 548             $sSQL .= "  'house' AS type, ";
 549             $sSQL .= "  null AS admin_level, ";
 550             $sSQL .= "  30 AS rank_search, ";
 551             $sSQL .= "  30 AS rank_address, ";
 552             $sSQL .= "  min(place_id) as place_id, ";
 553             $sSQL .= "  min(parent_place_id) AS parent_place_id, ";
 554             $sSQL .= "  country_code, ";
 555             $sSQL .= "  get_address_by_language(place_id, housenumber_for_place, $sLanguagePrefArraySQL) AS langaddress, ";
 556             $sSQL .= "  null AS placename, ";
 557             $sSQL .= "  null AS ref, ";
 558             if ($this->bIncludeExtraTags) $sSQL .= "null AS extra, ";
 559             if ($this->bIncludeNameDetails) $sSQL .= "null AS names, ";
 560             $sSQL .= "  AVG(st_x(centroid)) AS lon, ";
 561             $sSQL .= "  AVG(st_y(centroid)) AS lat, ";
 562             $sSQL .= "  ".$sImportanceSQL."-0.1 AS importance, ";  // slightly smaller than the importance for normal houses with rank 30, which is 0
 563             $sSQL .= "  (";
 564             $sSQL .= "     SELECT ";
 565             $sSQL .= "       MAX(p.importance*(p.rank_address+2)) ";
 566             $sSQL .= "     FROM";
 567             $sSQL .= "       place_addressline s, ";
 568             $sSQL .= "       placex p";
 569             $sSQL .= "     WHERE s.place_id = min(blub.parent_place_id) ";
 570             $sSQL .= "       AND p.place_id = s.address_place_id ";
 571             $sSQL .= "       AND s.isaddress ";
 572             $sSQL .= "       AND p.importance is not null";
 573             $sSQL .= "  ) AS addressimportance,";
 574             $sSQL .= "  null AS extra_place ";
 575             $sSQL .= "  FROM (";
 576             $sSQL .= "     SELECT ";
 577             $sSQL .= "         osm_id, ";
 578             $sSQL .= "         place_id, ";
 579             $sSQL .= "         country_code, ";
 580             $sSQL .= "         CASE ";             // interpolate the housenumbers here
 581             $sSQL .= "           WHEN startnumber != endnumber ";
 582             $sSQL .= "           THEN ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) ";
 583             $sSQL .= "           ELSE ST_LineInterpolatePoint(linegeo, 0.5) ";
 584             $sSQL .= "         END as centroid, ";
 585             $sSQL .= "         parent_place_id, ";
 586             $sSQL .= "         housenumber_for_place ";
 587             $sSQL .= "     FROM (";
 588             $sSQL .= "            location_property_osmline ";
 589             $sSQL .= "            JOIN (values ".$sHousenumbers.") AS housenumbers(place_id, housenumber_for_place) USING(place_id)";
 590             $sSQL .= "          ) ";
 591             $sSQL .= "     WHERE housenumber_for_place>=0 ";
 592             $sSQL .= "       AND 30 between $this->iMinAddressRank AND $this->iMaxAddressRank";
 593             $sSQL .= "  ) as blub"; //postgres wants an alias here
 594             $sSQL .= "  GROUP BY ";
 595             $sSQL .= "    osm_id, ";
 596             $sSQL .= "    place_id, ";
 597             $sSQL .= "    housenumber_for_place, ";
 598             $sSQL .= "    country_code "; //is this group by really needed?, place_id + housenumber (in combination) are unique
 599             if (!$this->bDeDupe) $sSQL .= ", place_id ";
 600
 601             if (CONST_Use_Aux_Location_data) {
 602                 $sSQL .= " UNION ";
 603                 $sSQL .= "  SELECT ";
 604                 $sSQL .= "     'L' AS osm_type, ";
 605                 $sSQL .= "     place_id AS osm_id, ";
 606                 $sSQL .= "     'place' AS class,";
 607                 $sSQL .= "     'house' AS type, ";
 608                 $sSQL .= "     null AS admin_level, ";
 609                 $sSQL .= "     0 AS rank_search,";
 610                 $sSQL .= "     0 AS rank_address, ";
 611                 $sSQL .= "     min(place_id) AS place_id,";
 612                 $sSQL .= "     min(parent_place_id) AS parent_place_id, ";
 613                 $sSQL .= "     'us' AS country_code, ";
 614                 $sSQL .= "     get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) AS langaddress, ";
 615                 $sSQL .= "     null AS placename, ";
 616                 $sSQL .= "     null AS ref, ";
 617                 if ($this->bIncludeExtraTags) $sSQL .= "null AS extra, ";
 618                 if ($this->bIncludeNameDetails) $sSQL .= "null AS names, ";
 619                 $sSQL .= "     avg(ST_X(centroid)) AS lon, ";
 620                 $sSQL .= "     avg(ST_Y(centroid)) AS lat, ";
 621                 $sSQL .= "     ".$sImportanceSQL."-1.10 AS importance, ";
 622                 $sSQL .= "     ( ";
 623                 $sSQL .= "       SELECT max(p.importance*(p.rank_address+2))";
 624                 $sSQL .= "       FROM ";
 625                 $sSQL .= "          place_addressline s, ";
 626                 $sSQL .= "          placex p";
 627                 $sSQL .= "       WHERE s.place_id = min(location_property_aux.parent_place_id)";
 628                 $sSQL .= "         AND p.place_id = s.address_place_id ";
 629                 $sSQL .= "         AND s.isaddress";
 630                 $sSQL .= "         AND p.importance is not null";
 631                 $sSQL .= "     ) AS addressimportance, ";
 632                 $sSQL .= "     null AS extra_place ";
 633                 $sSQL .= "  FROM location_property_aux ";
 634                 $sSQL .= "  WHERE place_id in ($sPlaceIDs) ";
 635                 $sSQL .= "    AND 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 636                 $sSQL .= "  GROUP BY ";
 637                 $sSQL .= "     place_id, ";
 638                 if (!$this->bDeDupe) $sSQL .= "place_id, ";
 639                 $sSQL .= "     get_address_by_language(place_id, -1, $sLanguagePrefArraySQL) ";
 640             }
 641         }
 642
 643         $sSQL .= " order by importance desc";
 644         if (CONST_Debug) {
 645             echo "<hr>";
 646             var_dump($sSQL);
 647         }
 648         $aSearchResults = chksql(
 649             $this->oDB->getAll($sSQL),
 650             "Could not get details for place."
 651         );
 652
 653         return $aSearchResults;
 654     }
 655
 656     public function getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases, $sNormQuery)
 657     {
 658         /*
 659              Calculate all searches using aValidTokens i.e.
 660              'Wodsworth Road, Sheffield' =>
 661
 662              Phrase Wordset
 663              0      0       (wodsworth road)
 664              0      1       (wodsworth)(road)
 665              1      0       (sheffield)
 666
 667              Score how good the search is so they can be ordered
 668          */
 669         foreach ($aPhrases as $iPhrase => $aPhrase) {
 670             $aNewPhraseSearches = array();
 671             if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 672             else $sPhraseType = '';
 673
 674             foreach ($aPhrase['wordsets'] as $iWordSet => $aWordset) {
 675                 // Too many permutations - too expensive
 676                 if ($iWordSet > 120) break;
 677
 678                 $aWordsetSearches = $aSearches;
 679
 680                 // Add all words from this wordset
 681                 foreach ($aWordset as $iToken => $sToken) {
 682                     //echo "<br><b>$sToken</b>";
 683                     $aNewWordsetSearches = array();
 684
 685                     foreach ($aWordsetSearches as $aCurrentSearch) {
 686                         //echo "<i>";
 687                         //var_dump($aCurrentSearch);
 688                         //echo "</i>";
 689
 690                         // If the token is valid
 691                         if (isset($aValidTokens[' '.$sToken])) {
 692                             foreach ($aValidTokens[' '.$sToken] as $aSearchTerm) {
 693                                 $aSearch = $aCurrentSearch;
 694                                 $aSearch['iSearchRank']++;
 695                                 if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0') {
 696                                     if ($aSearch['sCountryCode'] === false) {
 697                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 698                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 699                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases))) {
 700                                             $aSearch['iSearchRank'] += 5;
 701                                         }
 702                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 703                                     }
 704                                 } elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null) {
 705                                     if ($aSearch['oNear'] === false) {
 706                                         $aSearch['oNear'] = new NearPoint(
 707                                             $aSearchTerm['lat'],
 708                                             $aSearchTerm['lon'],
 709                                             $aSearchTerm['radius']
 710                                         );
 711                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 712                                     }
 713                                 } elseif ($sPhraseType == 'postalcode' || ($aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'postcode')) {
 714                                     // We need to try the case where the postal code is the primary element (i.e. no way to tell if it is (postalcode, city) OR (city, postalcode) so try both
 715                                     if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id']) {
 716                                         // If we have structured search or this is the first term,
 717                                         // make the postcode the primary search element.
 718                                         if ($sPhraseType == 'postalcode' || sizeof($aSearch['aName']) == 0) {
 719                                             $aNewSearch = $aSearch;
 720                                             $aNewSearch['sOperator'] = 'postcode';
 721                                             $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 722                                             $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_token'];
 723                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 724                                         }
 725
 726                                         // If we have a structured search or this is not the first term,
 727                                         // add the postcode as an addendum.
 728                                         if ($sPhraseType == 'postalcode' || sizeof($aSearch['aName'])) {
 729                                             $aSearch['sPostcode'] = $aSearchTerm['word_token'];
 730                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 731                                         }
 732                                     }
 733                                 } elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house') {
 734                                     if ($aSearch['sHouseNumber'] === '') {
 735                                         $aSearch['sHouseNumber'] = $sToken;
 736                                         // sanity check: if the housenumber is not mainly made
 737                                         // up of numbers, add a penalty
 738                                         if (preg_match_all("/[^0-9]/", $sToken, $aMatches) > 2) $aSearch['iSearchRank']++;
 739                                         // also housenumbers should appear in the first or second phrase
 740                                         if ($iPhrase > 1) $aSearch['iSearchRank'] += 1;
 741                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 742                                         /*
 743                                         // Fall back to not searching for this item (better than nothing)
 744                                         $aSearch = $aCurrentSearch;
 745                                         $aSearch['iSearchRank'] += 1;
 746                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 747                                          */
 748                                     }
 749                                 } elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null) {
 750                                     // require a normalized exact match of the term
 751                                     // if we have the normalizer version of the query
 752                                     // available
 753                                     if ($aSearch['sClass'] === ''
 754                                         && ($sNormQuery === null || !($aSearchTerm['word'] && strpos($sNormQuery, $aSearchTerm['word']) === false))) {
 755                                         $aSearch['sClass'] = $aSearchTerm['class'];
 756                                         $aSearch['sType'] = $aSearchTerm['type'];
 757                                         if ($aSearchTerm['operator'] == '') {
 758                                             $aSearch['sOperator'] = sizeof($aSearch['aName']) ? 'name' :  'near';
 759                                             $aSearch['iSearchRank'] += 2;
 760                                         } else {
 761                                             $aSearch['sOperator'] = 'near'; // near = in for the moment
 762                                         }
 763
 764                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 765                                     }
 766                                 } elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id']) {
 767                                     if (sizeof($aSearch['aName'])) {
 768                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false)) {
 769                                             $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 770                                         } else {
 771                                             $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 772                                             $aSearch['iSearchRank'] += 1000; // skip;
 773                                         }
 774                                     } else {
 775                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 776                                         //$aSearch['iNamePhrase'] = $iPhrase;
 777                                     }
 778                                     if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 779                                 }
 780                             }
 781                         }
 782                         // Look for partial matches.
 783                         // Note that there is no point in adding country terms here
 784                         // because country are omitted in the address.
 785                         if (isset($aValidTokens[$sToken]) && $sPhraseType != 'country') {
 786                             // Allow searching for a word - but at extra cost
 787                             foreach ($aValidTokens[$sToken] as $aSearchTerm) {
 788                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id']) {
 789                                     if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strpos($sToken, ' ') === false) {
 790                                         $aSearch = $aCurrentSearch;
 791                                         $aSearch['iSearchRank'] += 1;
 792                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency) {
 793                                             $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 794                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 795                                         } elseif (isset($aValidTokens[' '.$sToken])) { // revert to the token version?
 796                                             $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 797                                             $aSearch['iSearchRank'] += 1;
 798                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 799                                             foreach ($aValidTokens[' '.$sToken] as $aSearchTermToken) {
 800                                                 if (empty($aSearchTermToken['country_code'])
 801                                                     && empty($aSearchTermToken['lat'])
 802                                                     && empty($aSearchTermToken['class'])
 803                                                 ) {
 804                                                     $aSearch = $aCurrentSearch;
 805                                                     $aSearch['iSearchRank'] += 1;
 806                                                     $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 807                                                     if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 808                                                 }
 809                                             }
 810                                         } else {
 811                                             $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 812                                             if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 813                                             if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 814                                         }
 815                                     }
 816
 817                                     if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase) {
 818                                         $aSearch = $aCurrentSearch;
 819                                         $aSearch['iSearchRank'] += 1;
 820                                         if (!sizeof($aCurrentSearch['aName'])) $aSearch['iSearchRank'] += 1;
 821                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 822                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency) {
 823                                             $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 824                                         } else {
 825                                             $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 826                                         }
 827                                         $aSearch['iNamePhrase'] = $iPhrase;
 828                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 829                                     }
 830                                 }
 831                             }
 832                         } else {
 833                             // Allow skipping a word - but at EXTREAM cost
 834                             //$aSearch = $aCurrentSearch;
 835                             //$aSearch['iSearchRank']+=100;
 836                             //$aNewWordsetSearches[] = $aSearch;
 837                         }
 838                     }
 839                     // Sort and cut
 840                     usort($aNewWordsetSearches, 'bySearchRank');
 841                     $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
 842                 }
 843                 //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
 844
 845                 $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
 846                 usort($aNewPhraseSearches, 'bySearchRank');
 847
 848                 $aSearchHash = array();
 849                 foreach ($aNewPhraseSearches as $iSearch => $aSearch) {
 850                     $sHash = serialize($aSearch);
 851                     if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
 852                     else $aSearchHash[$sHash] = 1;
 853                 }
 854
 855                 $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
 856             }
 857
 858             // Re-group the searches by their score, junk anything over 20 as just not worth trying
 859             $aGroupedSearches = array();
 860             foreach ($aNewPhraseSearches as $aSearch) {
 861                 if ($aSearch['iSearchRank'] < $this->iMaxRank) {
 862                     if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 863                     $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 864                 }
 865             }
 866             ksort($aGroupedSearches);
 867
 868             $iSearchCount = 0;
 869             $aSearches = array();
 870             foreach ($aGroupedSearches as $iScore => $aNewSearches) {
 871                 $iSearchCount += sizeof($aNewSearches);
 872                 $aSearches = array_merge($aSearches, $aNewSearches);
 873                 if ($iSearchCount > 50) break;
 874             }
 875
 876             //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 877         }
 878         return $aGroupedSearches;
 879     }
 880
 881     /* Perform the actual query lookup.
 882
 883         Returns an ordered list of results, each with the following fields:
 884             osm_type: type of corresponding OSM object
 885                         N - node
 886                         W - way
 887                         R - relation
 888                         P - postcode (internally computed)
 889             osm_id: id of corresponding OSM object
 890             class: general object class (corresponds to tag key of primary OSM tag)
 891             type: subclass of object (corresponds to tag value of primary OSM tag)
 892             admin_level: see http://wiki.openstreetmap.org/wiki/Admin_level
 893             rank_search: rank in search hierarchy
 894                         (see also http://wiki.openstreetmap.org/wiki/Nominatim/Development_overview#Country_to_street_level)
 895             rank_address: rank in address hierarchy (determines orer in address)
 896             place_id: internal key (may differ between different instances)
 897             country_code: ISO country code
 898             langaddress: localized full address
 899             placename: localized name of object
 900             ref: content of ref tag (if available)
 901             lon: longitude
 902             lat: latitude
 903             importance: importance of place based on Wikipedia link count
 904             addressimportance: cumulated importance of address elements
 905             extra_place: type of place (for admin boundaries, if there is a place tag)
 906             aBoundingBox: bounding Box
 907             label: short description of the object class/type (English only)
 908             name: full name (currently the same as langaddress)
 909             foundorder: secondary ordering for places with same importance
 910     */
 911
 912
 913     public function lookup()
 914     {
 915         if (!$this->sQuery && !$this->aStructuredQuery) return array();
 916
 917         $oNormalizer = \Transliterator::createFromRules(CONST_Term_Normalization_Rules);
 918         if ($oNormalizer !== null) {
 919             $sNormQuery = $oNormalizer->transliterate($this->sQuery);
 920         } else {
 921             $sNormQuery = null;
 922         }
 923
 924         $sLanguagePrefArraySQL = "ARRAY[".join(',', array_map("getDBQuoted", $this->aLangPrefOrder))."]";
 925         $sCountryCodesSQL = false;
 926         if ($this->aCountryCodes) {
 927             $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 928         }
 929
 930         $sQuery = $this->sQuery;
 931         if (!preg_match('//u', $sQuery)) {
 932             userError("Query string is not UTF-8 encoded.");
 933         }
 934
 935         // Conflicts between US state abreviations and various words for 'the' in different languages
 936         if (isset($this->aLangPrefOrder['name:en'])) {
 937             $sQuery = preg_replace('/(^|,)\s*il\s*(,|$)/', '\1illinois\2', $sQuery);
 938             $sQuery = preg_replace('/(^|,)\s*al\s*(,|$)/', '\1alabama\2', $sQuery);
 939             $sQuery = preg_replace('/(^|,)\s*la\s*(,|$)/', '\1louisiana\2', $sQuery);
 940         }
 941
 942         $bBoundingBoxSearch = $this->bBoundedSearch && $this->sViewboxSmallSQL;
 943         if ($this->sViewboxCentreSQL) {
 944             // For complex viewboxes (routes) precompute the bounding geometry
 945             $sGeom = chksql(
 946                 $this->oDB->getOne("select ".$this->sViewboxSmallSQL),
 947                 "Could not get small viewbox"
 948             );
 949             $this->sViewboxSmallSQL = "'".$sGeom."'::geometry";
 950
 951             $sGeom = chksql(
 952                 $this->oDB->getOne("select ".$this->sViewboxLargeSQL),
 953                 "Could not get large viewbox"
 954             );
 955             $this->sViewboxLargeSQL = "'".$sGeom."'::geometry";
 956         }
 957
 958         // Do we have anything that looks like a lat/lon pair?
 959         $oNearPoint = false;
 960         if ($aLooksLike = NearPoint::extractFromQuery($sQuery)) {
 961             $oNearPoint = $aLooksLike['pt'];
 962             $sQuery = $aLooksLike['query'];
 963         }
 964
 965         $aSearchResults = array();
 966         if ($sQuery || $this->aStructuredQuery) {
 967             // Start with a blank search
 968             $aSearches = array(
 969                           array(
 970                            'iSearchRank' => 0,
 971                            'iNamePhrase' => -1,
 972                            'sCountryCode' => false,
 973                            'aName' => array(),
 974                            'aAddress' => array(),
 975                            'aFullNameAddress' => array(),
 976                            'aNameNonSearch' => array(),
 977                            'aAddressNonSearch' => array(),
 978                            'sOperator' => '',
 979                            'aFeatureName' => array(),
 980                            'sClass' => '',
 981                            'sType' => '',
 982                            'sHouseNumber' => '',
 983                            'sPostcode' => '',
 984                            'oNear' => $oNearPoint
 985                           )
 986                          );
 987
 988             // Any 'special' terms in the search?
 989             $bSpecialTerms = false;
 990             preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 991             $aSpecialTerms = array();
 992             foreach ($aSpecialTermsRaw as $aSpecialTerm) {
 993                 $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 994                 $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 995             }
 996
 997             preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 998             $aSpecialTerms = array();
 999             if (isset($this->aStructuredQuery['amenity']) && $this->aStructuredQuery['amenity']) {
1000                 $aSpecialTermsRaw[] = array('['.$this->aStructuredQuery['amenity'].']', $this->aStructuredQuery['amenity']);
1001                 unset($this->aStructuredQuery['amenity']);
1002             }
1003
1004             foreach ($aSpecialTermsRaw as $aSpecialTerm) {
1005                 $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
1006                 $sToken = chksql($this->oDB->getOne("SELECT make_standard_name('".$aSpecialTerm[1]."') AS string"));
1007                 $sSQL = 'SELECT * ';
1008                 $sSQL .= 'FROM ( ';
1009                 $sSQL .= '   SELECT word_id, word_token, word, class, type, country_code, operator';
1010                 $sSQL .= '   FROM word ';
1011                 $sSQL .= '   WHERE word_token in (\' '.$sToken.'\')';
1012                 $sSQL .= ') AS x ';
1013                 $sSQL .= ' WHERE (class is not null AND class not in (\'place\')) ';
1014                 $sSQL .= ' OR country_code is not null';
1015                 if (CONST_Debug) var_Dump($sSQL);
1016                 $aSearchWords = chksql($this->oDB->getAll($sSQL));
1017                 $aNewSearches = array();
1018                 foreach ($aSearches as $aSearch) {
1019                     foreach ($aSearchWords as $aSearchTerm) {
1020                         $aNewSearch = $aSearch;
1021                         if ($aSearchTerm['country_code']) {
1022                             $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
1023                             $aNewSearches[] = $aNewSearch;
1024                             $bSpecialTerms = true;
1025                         }
1026                         if ($aSearchTerm['class']) {
1027                             $aNewSearch['sClass'] = $aSearchTerm['class'];
1028                             $aNewSearch['sType'] = $aSearchTerm['type'];
1029                             $aNewSearches[] = $aNewSearch;
1030                             $bSpecialTerms = true;
1031                         }
1032                     }
1033                 }
1034                 $aSearches = $aNewSearches;
1035             }
1036
1037             // Split query into phrases
1038             // Commas are used to reduce the search space by indicating where phrases split
1039             if ($this->aStructuredQuery) {
1040                 $aPhrases = $this->aStructuredQuery;
1041                 $bStructuredPhrases = true;
1042             } else {
1043                 $aPhrases = explode(',', $sQuery);
1044                 $bStructuredPhrases = false;
1045             }
1046
1047             // Convert each phrase to standard form
1048             // Create a list of standard words
1049             // Get all 'sets' of words
1050             // Generate a complete list of all
1051             $aTokens = array();
1052             foreach ($aPhrases as $iPhrase => $sPhrase) {
1053                 $aPhrase = chksql(
1054                     $this->oDB->getRow("SELECT make_standard_name('".pg_escape_string($sPhrase)."') as string"),
1055                     "Cannot normalize query string (is it a UTF-8 string?)"
1056                 );
1057                 if (trim($aPhrase['string'])) {
1058                     $aPhrases[$iPhrase] = $aPhrase;
1059                     $aPhrases[$iPhrase]['words'] = explode(' ', $aPhrases[$iPhrase]['string']);
1060                     $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
1061                     $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
1062                 } else {
1063                     unset($aPhrases[$iPhrase]);
1064                 }
1065             }
1066
1067             // Reindex phrases - we make assumptions later on that they are numerically keyed in order
1068             $aPhraseTypes = array_keys($aPhrases);
1069             $aPhrases = array_values($aPhrases);
1070
1071             if (sizeof($aTokens)) {
1072                 // Check which tokens we have, get the ID numbers
1073                 $sSQL = 'SELECT word_id, word_token, word, class, type, country_code, operator, search_name_count';
1074                 $sSQL .= ' FROM word ';
1075                 $sSQL .= ' WHERE word_token in ('.join(',', array_map("getDBQuoted", $aTokens)).')';
1076
1077                 if (CONST_Debug) var_Dump($sSQL);
1078
1079                 $aValidTokens = array();
1080                 if (sizeof($aTokens)) {
1081                     $aDatabaseWords = chksql(
1082                         $this->oDB->getAll($sSQL),
1083                         "Could not get word tokens."
1084                     );
1085                 } else {
1086                     $aDatabaseWords = array();
1087                 }
1088                 $aPossibleMainWordIDs = array();
1089                 $aWordFrequencyScores = array();
1090                 foreach ($aDatabaseWords as $aToken) {
1091                     // Very special case - require 2 letter country param to match the country code found
1092                     if ($bStructuredPhrases && $aToken['country_code'] && !empty($this->aStructuredQuery['country'])
1093                         && strlen($this->aStructuredQuery['country']) == 2 && strtolower($this->aStructuredQuery['country']) != $aToken['country_code']
1094                     ) {
1095                         continue;
1096                     }
1097
1098                     if (isset($aValidTokens[$aToken['word_token']])) {
1099                         $aValidTokens[$aToken['word_token']][] = $aToken;
1100                     } else {
1101                         $aValidTokens[$aToken['word_token']] = array($aToken);
1102                     }
1103                     if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
1104                     $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
1105                 }
1106                 if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
1107
1108                 // Try and calculate GB postcodes we might be missing
1109                 foreach ($aTokens as $sToken) {
1110                     // Source of gb postcodes is now definitive - always use
1111                     if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData)) {
1112                         if (substr($aData[1], -2, 1) != ' ') {
1113                             $aData[0] = substr($aData[0], 0, strlen($aData[1])-1).' '.substr($aData[0], strlen($aData[1])-1);
1114                             $aData[1] = substr($aData[1], 0, -1).' '.substr($aData[1], -1, 1);
1115                         }
1116                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
1117                         if ($aGBPostcodeLocation) {
1118                             $aValidTokens[$sToken] = $aGBPostcodeLocation;
1119                         }
1120                     } elseif (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData)) {
1121                         // US ZIP+4 codes - if there is no token,
1122                         // merge in the 5-digit ZIP code
1123                         if (isset($aValidTokens[$aData[1]])) {
1124                             foreach ($aValidTokens[$aData[1]] as $aToken) {
1125                                 if (!$aToken['class']) {
1126                                     if (isset($aValidTokens[$sToken])) {
1127                                         $aValidTokens[$sToken][] = $aToken;
1128                                     } else {
1129                                         $aValidTokens[$sToken] = array($aToken);
1130                                     }
1131                                 }
1132                             }
1133                         }
1134                     }
1135                 }
1136
1137                 foreach ($aTokens as $sToken) {
1138                     // Unknown single word token with a number - assume it is a house number
1139                     if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken, ' ') === false && preg_match('/[0-9]/', $sToken)) {
1140                         $aValidTokens[' '.$sToken] = array(array('class' => 'place', 'type' => 'house'));
1141                     }
1142                 }
1143
1144                 // Any words that have failed completely?
1145                 // TODO: suggestions
1146
1147                 // Start the search process
1148                 // array with: placeid => -1 | tiger-housenumber
1149                 $aResultPlaceIDs = array();
1150
1151                 $aGroupedSearches = $this->getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases, $sNormQuery);
1152
1153                 if ($this->bReverseInPlan) {
1154                     // Reverse phrase array and also reverse the order of the wordsets in
1155                     // the first and final phrase. Don't bother about phrases in the middle
1156                     // because order in the address doesn't matter.
1157                     $aPhrases = array_reverse($aPhrases);
1158                     $aPhrases[0]['wordsets'] = getInverseWordSets($aPhrases[0]['words'], 0);
1159                     if (sizeof($aPhrases) > 1) {
1160                         $aFinalPhrase = end($aPhrases);
1161                         $aPhrases[sizeof($aPhrases)-1]['wordsets'] = getInverseWordSets($aFinalPhrase['words'], 0);
1162                     }
1163                     $aReverseGroupedSearches = $this->getGroupedSearches($aSearches, null, $aPhrases, $aValidTokens, $aWordFrequencyScores, false, $sNormQuery);
1164
1165                     foreach ($aGroupedSearches as $aSearches) {
1166                         foreach ($aSearches as $aSearch) {
1167                             if ($aSearch['iSearchRank'] < $this->iMaxRank) {
1168                                 if (!isset($aReverseGroupedSearches[$aSearch['iSearchRank']])) $aReverseGroupedSearches[$aSearch['iSearchRank']] = array();
1169                                 $aReverseGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1170                             }
1171                         }
1172                     }
1173
1174                     $aGroupedSearches = $aReverseGroupedSearches;
1175                     ksort($aGroupedSearches);
1176                 }
1177             } else {
1178                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
1179                 $aGroupedSearches = array();
1180                 foreach ($aSearches as $aSearch) {
1181                     if ($aSearch['iSearchRank'] < $this->iMaxRank) {
1182                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1183                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1184                     }
1185                 }
1186                 ksort($aGroupedSearches);
1187             }
1188
1189             if (CONST_Debug) var_Dump($aGroupedSearches);
1190             if (CONST_Search_TryDroppedAddressTerms && sizeof($this->aStructuredQuery) > 0) {
1191                 $aCopyGroupedSearches = $aGroupedSearches;
1192                 foreach ($aCopyGroupedSearches as $iGroup => $aSearches) {
1193                     foreach ($aSearches as $iSearch => $aSearch) {
1194                         $aReductionsList = array($aSearch['aAddress']);
1195                         $iSearchRank = $aSearch['iSearchRank'];
1196                         while (sizeof($aReductionsList) > 0) {
1197                             $iSearchRank += 5;
1198                             if ($iSearchRank > iMaxRank) break 3;
1199                             $aNewReductionsList = array();
1200                             foreach ($aReductionsList as $aReductionsWordList) {
1201                                 for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++) {
1202                                     $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
1203                                     $aReverseSearch = $aSearch;
1204                                     $aSearch['aAddress'] = $aReductionsWordListResult;
1205                                     $aSearch['iSearchRank'] = $iSearchRank;
1206                                     $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
1207                                     if (sizeof($aReductionsWordListResult) > 0) {
1208                                         $aNewReductionsList[] = $aReductionsWordListResult;
1209                                     }
1210                                 }
1211                             }
1212                             $aReductionsList = $aNewReductionsList;
1213                         }
1214                     }
1215                 }
1216                 ksort($aGroupedSearches);
1217             }
1218
1219             // Filter out duplicate searches
1220             $aSearchHash = array();
1221             foreach ($aGroupedSearches as $iGroup => $aSearches) {
1222                 foreach ($aSearches as $iSearch => $aSearch) {
1223                     $sHash = serialize($aSearch);
1224                     if (isset($aSearchHash[$sHash])) {
1225                         unset($aGroupedSearches[$iGroup][$iSearch]);
1226                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
1227                     } else {
1228                         $aSearchHash[$sHash] = 1;
1229                     }
1230                 }
1231             }
1232
1233             if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1234
1235             $iGroupLoop = 0;
1236             $iQueryLoop = 0;
1237             foreach ($aGroupedSearches as $iGroupedRank => $aSearches) {
1238                 $iGroupLoop++;
1239                 foreach ($aSearches as $aSearch) {
1240                     $iQueryLoop++;
1241                     $searchedHousenumber = -1;
1242
1243                     if (CONST_Debug) echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>";
1244                     if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1245
1246                     // No location term?
1247                     if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['oNear']) {
1248                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber']) {
1249                             // Just looking for a country by code - look it up
1250                             if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank) {
1251                                 $sSQL = "SELECT place_id FROM placex WHERE country_code='".$aSearch['sCountryCode']."' AND rank_search = 4";
1252                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1253                                 if ($bBoundingBoxSearch)
1254                                     $sSQL .= " AND _st_intersects($this->sViewboxSmallSQL, geometry)";
1255                                 $sSQL .= " ORDER BY st_area(geometry) DESC LIMIT 1";
1256                                 if (CONST_Debug) var_dump($sSQL);
1257                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1258                             } else {
1259                                 $aPlaceIDs = array();
1260                             }
1261                         } else {
1262                             if (!$bBoundingBoxSearch && !$aSearch['oNear']) continue;
1263                             if (!$aSearch['sClass']) continue;
1264
1265                             $sSQL = "SELECT COUNT(*) FROM pg_tables WHERE tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1266                             if (chksql($this->oDB->getOne($sSQL))) {
1267                                 $sSQL = "SELECT place_id FROM place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1268                                 if ($sCountryCodesSQL) $sSQL .= " JOIN placex USING (place_id)";
1269                                 $sSQL .= " WHERE st_contains($this->sViewboxSmallSQL, ct.centroid)";
1270                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1271                                 if (sizeof($this->aExcludePlaceIDs)) {
1272                                     $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1273                                 }
1274                                 if ($this->sViewboxCentreSQL) $sSQL .= " ORDER BY ST_Distance($this->sViewboxCentreSQL, ct.centroid) ASC";
1275                                 $sSQL .= " limit $this->iLimit";
1276                                 if (CONST_Debug) var_dump($sSQL);
1277                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1278
1279                                 // If excluded place IDs are given, it is fair to assume that
1280                                 // there have been results in the small box, so no further
1281                                 // expansion in that case.
1282                                 // Also don't expand if bounded results were requested.
1283                                 if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs) && !$this->bBoundedSearch) {
1284                                     $sSQL = "SELECT place_id FROM place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1285                                     if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1286                                     $sSQL .= " WHERE ST_Contains($this->sViewboxLargeSQL, ct.centroid)";
1287                                     if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1288                                     if ($this->sViewboxCentreSQL) $sSQL .= " ORDER BY ST_Distance($this->sViewboxCentreSQL, ct.centroid) ASC";
1289                                     $sSQL .= " LIMIT $this->iLimit";
1290                                     if (CONST_Debug) var_dump($sSQL);
1291                                     $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1292                                 }
1293                             } else {
1294                                 $sSQL = "SELECT place_id ";
1295                                 $sSQL .= "FROM placex ";
1296                                 $sSQL .= "WHERE class='".$aSearch['sClass']."' ";
1297                                 $sSQL .= "  AND type='".$aSearch['sType']."'";
1298                                 $sSQL .= "  AND ST_Contains($this->sViewboxSmallSQL, geometry) ";
1299                                 $sSQL .= "  AND linked_place_id is null";
1300                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1301                                 if ($this->sViewboxCentreSQL)   $sSQL .= " ORDER BY ST_Distance($this->sViewboxCentreSQL, centroid) ASC";
1302                                 $sSQL .= " LIMIT $this->iLimit";
1303                                 if (CONST_Debug) var_dump($sSQL);
1304                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1305                             }
1306                         }
1307                     } elseif ($aSearch['oNear'] && !sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['sClass']) {
1308                         // If a coordinate is given, the search must either
1309                         // be for a name or a special search. Ignore everythin else.
1310                         $aPlaceIDs = array();
1311                     } else {
1312                         $aPlaceIDs = array();
1313
1314                         // First we need a position, either aName or fLat or both
1315                         $aTerms = array();
1316                         $aOrder = array();
1317
1318                         if ($aSearch['sHouseNumber'] && sizeof($aSearch['aAddress'])) {
1319                             $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1320                             $aOrder[] = "";
1321                             $aOrder[0] = "  (";
1322                             $aOrder[0] .= "   EXISTS(";
1323                             $aOrder[0] .= "     SELECT place_id ";
1324                             $aOrder[0] .= "     FROM placex ";
1325                             $aOrder[0] .= "     WHERE parent_place_id = search_name.place_id";
1326                             $aOrder[0] .= "       AND transliteration(housenumber) ~* E'".$sHouseNumberRegex."' ";
1327                             $aOrder[0] .= "     LIMIT 1";
1328                             $aOrder[0] .= "   ) ";
1329                             // also housenumbers from interpolation lines table are needed
1330                             $aOrder[0] .= "   OR EXISTS(";
1331                             $aOrder[0] .= "     SELECT place_id ";
1332                             $aOrder[0] .= "     FROM location_property_osmline ";
1333                             $aOrder[0] .= "     WHERE parent_place_id = search_name.place_id";
1334                             $aOrder[0] .= "       AND startnumber is not NULL";
1335                             $aOrder[0] .= "       AND ".intval($aSearch['sHouseNumber']).">=startnumber ";
1336                             $aOrder[0] .= "       AND ".intval($aSearch['sHouseNumber'])."<=endnumber ";
1337                             $aOrder[0] .= "     LIMIT 1";
1338                             $aOrder[0] .= "   )";
1339                             $aOrder[0] .= " )";
1340                             $aOrder[0] .= " DESC";
1341                         }
1342
1343                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1344                         // they might be right - but they are just too darned expensive to run
1345                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'], ",")."]";
1346                         if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'], ",")."]";
1347                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress']) {
1348                             // For infrequent name terms disable index usage for address
1349                             if (CONST_Search_NameOnlySearchFrequencyThreshold
1350                                 && sizeof($aSearch['aName']) == 1
1351                                 && $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold
1352                             ) {
1353                                 $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'], $aSearch['aAddressNonSearch']), ",")."]";
1354                             } else {
1355                                 $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'], ",")."]";
1356                                 if (sizeof($aSearch['aAddressNonSearch'])) {
1357                                     $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'], ",")."]";
1358                                 }
1359                             }
1360                         }
1361                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1362                         if ($aSearch['sHouseNumber']) {
1363                             $aTerms[] = "address_rank between 16 and 27";
1364                         } else {
1365                             if ($this->iMinAddressRank > 0) {
1366                                 $aTerms[] = "address_rank >= ".$this->iMinAddressRank;
1367                             }
1368                             if ($this->iMaxAddressRank < 30) {
1369                                 $aTerms[] = "address_rank <= ".$this->iMaxAddressRank;
1370                             }
1371                         }
1372                         if ($aSearch['oNear']) {
1373                             $aTerms[] = $aSearch['oNear']->withinSQL('centroid');
1374
1375                             $aOrder[] = $aSearch['oNear']->distanceSQL('centroid');
1376                         }
1377                         if (sizeof($this->aExcludePlaceIDs)) {
1378                             $aTerms[] = "place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1379                         }
1380                         if ($sCountryCodesSQL) {
1381                             $aTerms[] = "country_code in ($sCountryCodesSQL)";
1382                         }
1383
1384                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
1385                         if ($oNearPoint) {
1386                             $aOrder[] = $oNearPoint->distanceSQL('centroid');
1387                         }
1388
1389                         if ($aSearch['sHouseNumber']) {
1390                             $sImportanceSQL = '- abs(26 - address_rank) + 3';
1391                         } else {
1392                             $sImportanceSQL = '(CASE WHEN importance = 0 OR importance IS NULL THEN 0.75-(search_rank::float/40) ELSE importance END)';
1393                         }
1394                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " * CASE WHEN ST_Contains($this->sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1395                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " * CASE WHEN ST_Contains($this->sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1396
1397                         $aOrder[] = "$sImportanceSQL DESC";
1398                         if (sizeof($aSearch['aFullNameAddress'])) {
1399                             $sExactMatchSQL = ' ( ';
1400                             $sExactMatchSQL .= '   SELECT count(*) FROM ( ';
1401                             $sExactMatchSQL .= '      SELECT unnest(ARRAY['.join($aSearch['aFullNameAddress'], ",").']) ';
1402                             $sExactMatchSQL .= '      INTERSECT ';
1403                             $sExactMatchSQL .= '      SELECT unnest(nameaddress_vector)';
1404                             $sExactMatchSQL .= '   ) s';
1405                             $sExactMatchSQL .= ') as exactmatch';
1406                             $aOrder[] = 'exactmatch DESC';
1407                         } else {
1408                             $sExactMatchSQL = '0::int as exactmatch';
1409                         }
1410
1411                         if (sizeof($aTerms)) {
1412                             $sSQL = "SELECT place_id, ";
1413                             $sSQL .= $sExactMatchSQL;
1414                             $sSQL .= " FROM search_name";
1415                             $sSQL .= " WHERE ".join(' and ', $aTerms);
1416                             $sSQL .= " ORDER BY ".join(', ', $aOrder);
1417                             if ($aSearch['sHouseNumber'] || $aSearch['sClass']) {
1418                                 $sSQL .= " LIMIT 20";
1419                             } elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass']) {
1420                                 $sSQL .= " LIMIT 1";
1421                             } else {
1422                                 $sSQL .= " LIMIT ".$this->iLimit;
1423                             }
1424
1425                             if (CONST_Debug) var_dump($sSQL);
1426                             $aViewBoxPlaceIDs = chksql(
1427                                 $this->oDB->getAll($sSQL),
1428                                 "Could not get places for search terms."
1429                             );
1430                             //var_dump($aViewBoxPlaceIDs);
1431                             // Did we have an viewbox matches?
1432                             $aPlaceIDs = array();
1433                             $bViewBoxMatch = false;
1434                             foreach ($aViewBoxPlaceIDs as $aViewBoxRow) {
1435                                 //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1436                                 //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1437                                 //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1438                                 //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1439                                 $aPlaceIDs[] = $aViewBoxRow['place_id'];
1440                                 $this->exactMatchCache[$aViewBoxRow['place_id']] = $aViewBoxRow['exactmatch'];
1441                             }
1442                         }
1443                         //var_Dump($aPlaceIDs);
1444                         //exit;
1445
1446                         //now search for housenumber, if housenumber provided
1447                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs)) {
1448                             $searchedHousenumber = intval($aSearch['sHouseNumber']);
1449                             $aRoadPlaceIDs = $aPlaceIDs;
1450                             $sPlaceIDs = join(',', $aPlaceIDs);
1451
1452                             // Now they are indexed, look for a house attached to a street we found
1453                             $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1454                             $sSQL = "SELECT place_id FROM placex ";
1455                             $sSQL .= "WHERE parent_place_id in (".$sPlaceIDs.") and transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
1456                             if (sizeof($this->aExcludePlaceIDs)) {
1457                                 $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1458                             }
1459                             $sSQL .= " LIMIT $this->iLimit";
1460                             if (CONST_Debug) var_dump($sSQL);
1461                             $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1462
1463                             // if nothing found, search in the interpolation line table
1464                             if (!sizeof($aPlaceIDs)) {
1465                                 // do we need to use transliteration and the regex for housenumbers???
1466                                 //new query for lines, not housenumbers anymore
1467                                 $sSQL = "SELECT distinct place_id FROM location_property_osmline";
1468                                 $sSQL .= " WHERE startnumber is not NULL and parent_place_id in (".$sPlaceIDs.") and (";
1469                                 if ($searchedHousenumber%2 == 0) {
1470                                     //if housenumber is even, look for housenumber in streets with interpolationtype even or all
1471                                     $sSQL .= "interpolationtype='even'";
1472                                 } else {
1473                                     //look for housenumber in streets with interpolationtype odd or all
1474                                     $sSQL .= "interpolationtype='odd'";
1475                                 }
1476                                 $sSQL .= " or interpolationtype='all') and ";
1477                                 $sSQL .= $searchedHousenumber.">=startnumber and ";
1478                                 $sSQL .= $searchedHousenumber."<=endnumber";
1479
1480                                 if (sizeof($this->aExcludePlaceIDs)) {
1481                                     $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1482                                 }
1483                                 //$sSQL .= " limit $this->iLimit";
1484                                 if (CONST_Debug) var_dump($sSQL);
1485                                 //get place IDs
1486                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
1487                             }
1488
1489                             // If nothing found try the aux fallback table
1490                             if (CONST_Use_Aux_Location_data && !sizeof($aPlaceIDs)) {
1491                                 $sSQL = "SELECT place_id FROM location_property_aux ";
1492                                 $sSQL .= " WHERE parent_place_id in (".$sPlaceIDs.") ";
1493                                 $sSQL .= " AND housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1494                                 if (sizeof($this->aExcludePlaceIDs)) {
1495                                     $sSQL .= " AND parent_place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1496                                 }
1497                                 //$sSQL .= " limit $this->iLimit";
1498                                 if (CONST_Debug) var_dump($sSQL);
1499                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1500                             }
1501
1502                             //if nothing was found in placex or location_property_aux, then search in Tiger data for this housenumber(location_property_tiger)
1503                             if (CONST_Use_US_Tiger_Data && !sizeof($aPlaceIDs)) {
1504                                 $sSQL = "SELECT distinct place_id FROM location_property_tiger";
1505                                 $sSQL .= " WHERE parent_place_id in (".$sPlaceIDs.") and (";
1506                                 if ($searchedHousenumber%2 == 0) {
1507                                     $sSQL .= "interpolationtype='even'";
1508                                 } else {
1509                                     $sSQL .= "interpolationtype='odd'";
1510                                 }
1511                                 $sSQL .= " or interpolationtype='all') and ";
1512                                 $sSQL .= $searchedHousenumber.">=startnumber and ";
1513                                 $sSQL .= $searchedHousenumber."<=endnumber";
1514
1515                                 if (sizeof($this->aExcludePlaceIDs)) {
1516                                     $sSQL .= " AND place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1517                                 }
1518                                 //$sSQL .= " limit $this->iLimit";
1519                                 if (CONST_Debug) var_dump($sSQL);
1520                                 //get place IDs
1521                                 $aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
1522                             }
1523
1524                             // Fallback to the road (if no housenumber was found)
1525                             if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber'])) {
1526                                 $aPlaceIDs = $aRoadPlaceIDs;
1527                                 //set to -1, if no housenumbers were found
1528                                 $searchedHousenumber = -1;
1529                             }
1530                             //else: housenumber was found, remains saved in searchedHousenumber
1531                         }
1532
1533
1534                         if ($aSearch['sClass'] && sizeof($aPlaceIDs)) {
1535                             $sPlaceIDs = join(',', $aPlaceIDs);
1536                             $aClassPlaceIDs = array();
1537
1538                             if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name') {
1539                                 // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1540                                 $sSQL = "SELECT place_id ";
1541                                 $sSQL .= " FROM placex ";
1542                                 $sSQL .= " WHERE place_id in ($sPlaceIDs) ";
1543                                 $sSQL .= "   AND class='".$aSearch['sClass']."' ";
1544                                 $sSQL .= "   AND type='".$aSearch['sType']."'";
1545                                 $sSQL .= "   AND linked_place_id is null";
1546                                 if ($sCountryCodesSQL) $sSQL .= " AND country_code in ($sCountryCodesSQL)";
1547                                 $sSQL .= " ORDER BY rank_search ASC ";
1548                                 $sSQL .= " LIMIT $this->iLimit";
1549                                 if (CONST_Debug) var_dump($sSQL);
1550                                 $aClassPlaceIDs = chksql($this->oDB->getCol($sSQL));
1551                             }
1552
1553                             if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') { // & in
1554                                 $sClassTable = 'place_classtype_'.$aSearch['sClass'].'_'.$aSearch['sType'];
1555                                 $sSQL = "SELECT count(*) FROM pg_tables ";
1556                                 $sSQL .= "WHERE tablename = '$sClassTable'";
1557                                 $bCacheTable = chksql($this->oDB->getOne($sSQL));
1558
1559                                 $sSQL = "SELECT min(rank_search) FROM placex WHERE place_id in ($sPlaceIDs)";
1560
1561                                 if (CONST_Debug) var_dump($sSQL);
1562                                 $this->iMaxRank = ((int)chksql($this->oDB->getOne($sSQL)));
1563
1564                                 // For state / country level searches the normal radius search doesn't work very well
1565                                 $sPlaceGeom = false;
1566                                 if ($this->iMaxRank < 9 && $bCacheTable) {
1567                                     // Try and get a polygon to search in instead
1568                                     $sSQL = "SELECT geometry ";
1569                                     $sSQL .= " FROM placex";
1570                                     $sSQL .= " WHERE place_id in ($sPlaceIDs)";
1571                                     $sSQL .= "   AND rank_search < $this->iMaxRank + 5";
1572                                     $sSQL .= "   AND ST_Geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon')";
1573                                     $sSQL .= " ORDER BY rank_search ASC ";
1574                                     $sSQL .= " LIMIT 1";
1575                                     if (CONST_Debug) var_dump($sSQL);
1576                                     $sPlaceGeom = chksql($this->oDB->getOne($sSQL));
1577                                 }
1578
1579                                 if ($sPlaceGeom) {
1580                                     $sPlaceIDs = false;
1581                                 } else {
1582                                     $this->iMaxRank += 5;
1583                                     $sSQL = "SELECT place_id FROM placex WHERE place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1584                                     if (CONST_Debug) var_dump($sSQL);
1585                                     $aPlaceIDs = chksql($this->oDB->getCol($sSQL));
1586                                     $sPlaceIDs = join(',', $aPlaceIDs);
1587                                 }
1588
1589                                 if ($sPlaceIDs || $sPlaceGeom) {
1590                                     $fRange = 0.01;
1591                                     if ($bCacheTable) {
1592                                         // More efficient - can make the range bigger
1593                                         $fRange = 0.05;
1594
1595                                         $sOrderBySQL = '';
1596                                         if ($oNearPoint) {
1597                                             $sOrderBySQL = $oNearPoint->distanceSQL('l.centroid');
1598                                         } elseif ($sPlaceIDs) {
1599                                             $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1600                                         } elseif ($sPlaceGeom) {
1601                                             $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1602                                         }
1603
1604                                         $sSQL = "select distinct i.place_id".($sOrderBySQL?', i.order_term':'')." from (";
1605                                         $sSQL .= "select l.place_id".($sOrderBySQL?','.$sOrderBySQL.' as order_term':'')." from ".$sClassTable." as l";
1606                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1607                                         if ($sPlaceIDs) {
1608                                             $sSQL .= ",placex as f where ";
1609                                             $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1610                                         }
1611                                         if ($sPlaceGeom) {
1612                                             $sSQL .= " where ";
1613                                             $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1614                                         }
1615                                         if (sizeof($this->aExcludePlaceIDs)) {
1616                                             $sSQL .= " and l.place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1617                                         }
1618                                         if ($sCountryCodesSQL) $sSQL .= " and lp.country_code in ($sCountryCodesSQL)";
1619                                         $sSQL .= 'limit 300) i ';
1620                                         if ($sOrderBySQL) $sSQL .= "order by order_term asc";
1621                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1622                                         $sSQL .= " limit $this->iLimit";
1623                                         if (CONST_Debug) var_dump($sSQL);
1624                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
1625                                     } else {
1626                                         if ($aSearch['oNear']) {
1627                                             $fRange = $aSearch['oNear']->radius();
1628                                         }
1629
1630                                         $sOrderBySQL = '';
1631                                         if ($oNearPoint) {
1632                                             $sOrderBySQL = $oNearPoint->distanceSQL('l.geometry');
1633                                         } else {
1634                                             $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1635                                         }
1636
1637                                         $sSQL = "SELECT distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'');
1638                                         $sSQL .= " FROM placex as l, placex as f ";
1639                                         $sSQL .= " WHERE f.place_id in ($sPlaceIDs) ";
1640                                         $sSQL .= "  AND ST_DWithin(l.geometry, f.centroid, $fRange) ";
1641                                         $sSQL .= "  AND l.class='".$aSearch['sClass']."' ";
1642                                         $sSQL .= "  AND l.type='".$aSearch['sType']."' ";
1643                                         if (sizeof($this->aExcludePlaceIDs)) {
1644                                             $sSQL .= " AND l.place_id not in (".join(',', $this->aExcludePlaceIDs).")";
1645                                         }
1646                                         if ($sCountryCodesSQL) $sSQL .= " AND l.country_code in ($sCountryCodesSQL)";
1647                                         if ($sOrderBy) $sSQL .= "ORDER BY ".$OrderBysSQL." ASC";
1648                                         if ($this->iOffset) $sSQL .= " OFFSET $this->iOffset";
1649                                         $sSQL .= " limit $this->iLimit";
1650                                         if (CONST_Debug) var_dump($sSQL);
1651                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
1652                                     }
1653                                 }
1654                             }
1655                             $aPlaceIDs = $aClassPlaceIDs;
1656                         }
1657                     }
1658
1659                     if (CONST_Debug) {
1660                         echo "<br><b>Place IDs:</b> ";
1661                         var_Dump($aPlaceIDs);
1662                     }
1663
1664                     foreach ($aPlaceIDs as $iPlaceID) {
1665                         // array for placeID => -1 | Tiger housenumber
1666                         $aResultPlaceIDs[$iPlaceID] = $searchedHousenumber;
1667                     }
1668                     if ($iQueryLoop > 20) break;
1669                 }
1670
1671                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30)) {
1672                     // Need to verify passes rank limits before dropping out of the loop (yuk!)
1673                     // reduces the number of place ids, like a filter
1674                     // rank_address is 30 for interpolated housenumbers
1675                     $sSQL = "SELECT place_id ";
1676                     $sSQL .= "FROM placex ";
1677                     $sSQL .= "WHERE place_id in (".join(',', array_keys($aResultPlaceIDs)).") ";
1678                     $sSQL .= "  AND (";
1679                     $sSQL .= "         placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1680                     if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) {
1681                         $sSQL .= "     OR (extratags->'place') = 'city'";
1682                     }
1683                     if ($this->aAddressRankList) {
1684                         $sSQL .= "     OR placex.rank_address in (".join(',', $this->aAddressRankList).")";
1685                     }
1686                     if (CONST_Use_US_Tiger_Data) {
1687                         $sSQL .= "  ) ";
1688                         $sSQL .= "UNION ";
1689                         $sSQL .= "  SELECT place_id ";
1690                         $sSQL .= "  FROM location_property_tiger ";
1691                         $sSQL .= "  WHERE place_id in (".join(',', array_keys($aResultPlaceIDs)).") ";
1692                         $sSQL .= "    AND (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1693                         if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',', $this->aAddressRankList).")";
1694                     }
1695                     $sSQL .= ") UNION ";
1696                     $sSQL .= "  SELECT place_id ";
1697                     $sSQL .= "  FROM location_property_osmline ";
1698                     $sSQL .= "  WHERE place_id in (".join(',', array_keys($aResultPlaceIDs)).")";
1699                     $sSQL .= "    AND startnumber is not NULL AND (30 between $this->iMinAddressRank and $this->iMaxAddressRank)";
1700                     if (CONST_Debug) var_dump($sSQL);
1701                     $aFilteredPlaceIDs = chksql($this->oDB->getCol($sSQL));
1702                     $tempIDs = array();
1703                     foreach ($aFilteredPlaceIDs as $placeID) {
1704                         $tempIDs[$placeID] = $aResultPlaceIDs[$placeID];  //assign housenumber to placeID
1705                     }
1706                     $aResultPlaceIDs = $tempIDs;
1707                 }
1708
1709                 //exit;
1710                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1711                 if ($iGroupLoop > 4) break;
1712                 if ($iQueryLoop > 30) break;
1713             }
1714
1715             // Did we find anything?
1716             if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) {
1717                 $aSearchResults = $this->getDetails($aResultPlaceIDs);
1718             }
1719         } else {
1720             // Just interpret as a reverse geocode
1721             $oReverse = new ReverseGeocode($this->oDB);
1722             $oReverse->setZoom(18);
1723
1724             $aLookup = $oReverse->lookup(
1725                 $oNearPoint->lat(),
1726                 $oNearPoint->lon(),
1727                 false
1728             );
1729
1730             if (CONST_Debug) var_dump("Reverse search", $aLookup);
1731
1732             if ($aLookup['place_id']) {
1733                 $aSearchResults = $this->getDetails(array($aLookup['place_id'] => -1));
1734                 $aResultPlaceIDs[$aLookup['place_id']] = -1;
1735             } else {
1736                 $aSearchResults = array();
1737             }
1738         }
1739
1740         // No results? Done
1741         if (!sizeof($aSearchResults)) {
1742             if ($this->bFallback) {
1743                 if ($this->fallbackStructuredQuery()) {
1744                     return $this->lookup();
1745                 }
1746             }
1747
1748             return array();
1749         }
1750
1751         $aClassType = getClassTypesWithImportance();
1752         $aRecheckWords = preg_split('/\b[\s,\\-]*/u', $sQuery);
1753         foreach ($aRecheckWords as $i => $sWord) {
1754             if (!preg_match('/[\pL\pN]/', $sWord)) unset($aRecheckWords[$i]);
1755         }
1756
1757         if (CONST_Debug) {
1758             echo '<i>Recheck words:<\i>';
1759             var_dump($aRecheckWords);
1760         }
1761
1762         $oPlaceLookup = new PlaceLookup($this->oDB);
1763         $oPlaceLookup->setIncludePolygonAsPoints($this->bIncludePolygonAsPoints);
1764         $oPlaceLookup->setIncludePolygonAsText($this->bIncludePolygonAsText);
1765         $oPlaceLookup->setIncludePolygonAsGeoJSON($this->bIncludePolygonAsGeoJSON);
1766         $oPlaceLookup->setIncludePolygonAsKML($this->bIncludePolygonAsKML);
1767         $oPlaceLookup->setIncludePolygonAsSVG($this->bIncludePolygonAsSVG);
1768         $oPlaceLookup->setPolygonSimplificationThreshold($this->fPolygonSimplificationThreshold);
1769
1770         foreach ($aSearchResults as $iResNum => $aResult) {
1771             // Default
1772             $fDiameter = getResultDiameter($aResult);
1773
1774             $aOutlineResult = $oPlaceLookup->getOutlines($aResult['place_id'], $aResult['lon'], $aResult['lat'], $fDiameter/2);
1775             if ($aOutlineResult) {
1776                 $aResult = array_merge($aResult, $aOutlineResult);
1777             }
1778
1779             if ($aResult['extra_place'] == 'city') {
1780                 $aResult['class'] = 'place';
1781                 $aResult['type'] = 'city';
1782                 $aResult['rank_search'] = 16;
1783             }
1784
1785             // Is there an icon set for this type of result?
1786             if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1787                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon']
1788             ) {
1789                 $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1790             }
1791
1792             if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1793                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label']
1794             ) {
1795                 $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1796             } elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1797                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label']
1798             ) {
1799                 $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1800             }
1801             // if tag '&addressdetails=1' is set in query
1802             if ($this->bIncludeAddressDetails) {
1803                 // getAddressDetails() is defined in lib.php and uses the SQL function get_addressdata in functions.sql
1804                 $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code'], $aResultPlaceIDs[$aResult['place_id']]);
1805                 if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city'])) {
1806                     $aResult['address'] = array_merge(array('city' => array_values($aResult['address'])[0]), $aResult['address']);
1807                 }
1808             }
1809
1810             if ($this->bIncludeExtraTags) {
1811                 if ($aResult['extra']) {
1812                     $aResult['sExtraTags'] = json_decode($aResult['extra']);
1813                 } else {
1814                     $aResult['sExtraTags'] = (object) array();
1815                 }
1816             }
1817
1818             if ($this->bIncludeNameDetails) {
1819                 if ($aResult['names']) {
1820                     $aResult['sNameDetails'] = json_decode($aResult['names']);
1821                 } else {
1822                     $aResult['sNameDetails'] = (object) array();
1823                 }
1824             }
1825
1826             // Adjust importance for the number of exact string matches in the result
1827             $aResult['importance'] = max(0.001, $aResult['importance']);
1828             $iCountWords = 0;
1829             $sAddress = $aResult['langaddress'];
1830             foreach ($aRecheckWords as $i => $sWord) {
1831                 if (stripos($sAddress, $sWord)!==false) {
1832                     $iCountWords++;
1833                     if (preg_match("/(^|,)\s*".preg_quote($sWord, '/')."\s*(,|$)/", $sAddress)) $iCountWords += 0.1;
1834                 }
1835             }
1836
1837             $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
1838
1839             $aResult['name'] = $aResult['langaddress'];
1840             // secondary ordering (for results with same importance (the smaller the better):
1841             // - approximate importance of address parts
1842             $aResult['foundorder'] = -$aResult['addressimportance']/10;
1843             // - number of exact matches from the query
1844             if (isset($this->exactMatchCache[$aResult['place_id']])) {
1845                 $aResult['foundorder'] -= $this->exactMatchCache[$aResult['place_id']];
1846             } elseif (isset($this->exactMatchCache[$aResult['parent_place_id']])) {
1847                 $aResult['foundorder'] -= $this->exactMatchCache[$aResult['parent_place_id']];
1848             }
1849             // - importance of the class/type
1850             if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1851                 && $aClassType[$aResult['class'].':'.$aResult['type']]['importance']
1852             ) {
1853                 $aResult['foundorder'] += 0.0001 * $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1854             } else {
1855                 $aResult['foundorder'] += 0.01;
1856             }
1857             if (CONST_Debug) var_dump($aResult);
1858             $aSearchResults[$iResNum] = $aResult;
1859         }
1860         uasort($aSearchResults, 'byImportance');
1861
1862         $aOSMIDDone = array();
1863         $aClassTypeNameDone = array();
1864         $aToFilter = $aSearchResults;
1865         $aSearchResults = array();
1866
1867         $bFirst = true;
1868         foreach ($aToFilter as $iResNum => $aResult) {
1869             $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1870             if ($bFirst) {
1871                 $fLat = $aResult['lat'];
1872                 $fLon = $aResult['lon'];
1873                 if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1874                 $bFirst = false;
1875             }
1876             if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1877                 && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']]))
1878             ) {
1879                 $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1880                 $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1881                 $aSearchResults[] = $aResult;
1882             }
1883
1884             // Absolute limit on number of results
1885             if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1886         }
1887
1888         return $aSearchResults;
1889     } // end lookup()
1890 } // end class