lib/Geocode.php

   1 <?php
   2         class Geocode
   3         {
   4                 protected $oDB;
   5
   6                 protected $aLangPrefOrder = array();
   7
   8                 protected $bIncludeAddressDetails = false;
   9                 protected $bIncludeExtraTags = false;
  10                 protected $bIncludeNameDetails = false;
  11
  12                 protected $bIncludePolygonAsPoints = false;
  13                 protected $bIncludePolygonAsText = false;
  14                 protected $bIncludePolygonAsGeoJSON = false;
  15                 protected $bIncludePolygonAsKML = false;
  16                 protected $bIncludePolygonAsSVG = false;
  17                 protected $fPolygonSimplificationThreshold = 0.0;
  18
  19                 protected $aExcludePlaceIDs = array();
  20                 protected $bDeDupe = true;
  21                 protected $bReverseInPlan = false;
  22
  23                 protected $iLimit = 20;
  24                 protected $iFinalLimit = 10;
  25                 protected $iOffset = 0;
  26                 protected $bFallback = false;
  27
  28                 protected $aCountryCodes = false;
  29                 protected $aNearPoint = false;
  30
  31                 protected $bBoundedSearch = false;
  32                 protected $aViewBox = false;
  33                 protected $sViewboxSmallSQL = false;
  34                 protected $sViewboxLargeSQL = false;
  35                 protected $aRoutePoints = false;
  36
  37                 protected $iMaxRank = 20;
  38                 protected $iMinAddressRank = 0;
  39                 protected $iMaxAddressRank = 30;
  40                 protected $aAddressRankList = array();
  41                 protected $exactMatchCache = array();
  42
  43                 protected $sAllowedTypesSQLList = false;
  44
  45                 protected $sQuery = false;
  46                 protected $aStructuredQuery = false;
  47
  48                 function Geocode(&$oDB)
  49                 {
  50                         $this->oDB =& $oDB;
  51                 }
  52
  53                 function setReverseInPlan($bReverse)
  54                 {
  55                         $this->bReverseInPlan = $bReverse;
  56                 }
  57
  58                 function setLanguagePreference($aLangPref)
  59                 {
  60                         $this->aLangPrefOrder = $aLangPref;
  61                 }
  62
  63                 function setIncludeAddressDetails($bAddressDetails = true)
  64                 {
  65                         $this->bIncludeAddressDetails = (bool)$bAddressDetails;
  66                 }
  67
  68                 function getIncludeAddressDetails()
  69                 {
  70                         return $this->bIncludeAddressDetails;
  71                 }
  72
  73                 function getIncludeExtraTags()
  74                 {
  75                         return $this->bIncludeExtraTags;
  76                 }
  77
  78                 function getIncludeNameDetails()
  79                 {
  80                         return $this->bIncludeNameDetails;
  81                 }
  82
  83                 function setIncludePolygonAsPoints($b = true)
  84                 {
  85                         $this->bIncludePolygonAsPoints = $b;
  86                 }
  87
  88                 function getIncludePolygonAsPoints()
  89                 {
  90                         return $this->bIncludePolygonAsPoints;
  91                 }
  92
  93                 function setIncludePolygonAsText($b = true)
  94                 {
  95                         $this->bIncludePolygonAsText = $b;
  96                 }
  97
  98                 function getIncludePolygonAsText()
  99                 {
 100                         return $this->bIncludePolygonAsText;
 101                 }
 102
 103                 function setIncludePolygonAsGeoJSON($b = true)
 104                 {
 105                         $this->bIncludePolygonAsGeoJSON = $b;
 106                 }
 107
 108                 function setIncludePolygonAsKML($b = true)
 109                 {
 110                         $this->bIncludePolygonAsKML = $b;
 111                 }
 112
 113                 function setIncludePolygonAsSVG($b = true)
 114                 {
 115                         $this->bIncludePolygonAsSVG = $b;
 116                 }
 117
 118                 function setPolygonSimplificationThreshold($f)
 119                 {
 120                         $this->fPolygonSimplificationThreshold = $f;
 121                 }
 122
 123                 function setDeDupe($bDeDupe = true)
 124                 {
 125                         $this->bDeDupe = (bool)$bDeDupe;
 126                 }
 127
 128                 function setLimit($iLimit = 10)
 129                 {
 130                         if ($iLimit > 50) $iLimit = 50;
 131                         if ($iLimit < 1) $iLimit = 1;
 132
 133                         $this->iFinalLimit = $iLimit;
 134                         $this->iLimit = $this->iFinalLimit + min($this->iFinalLimit, 10);
 135                 }
 136
 137                 function setOffset($iOffset = 0)
 138                 {
 139                         $this->iOffset = $iOffset;
 140                 }
 141
 142                 function setFallback($bFallback = true)
 143                 {
 144                         $this->bFallback = (bool)$bFallback;
 145                 }
 146
 147                 function setExcludedPlaceIDs($a)
 148                 {
 149                         // TODO: force to int
 150                         $this->aExcludePlaceIDs = $a;
 151                 }
 152
 153                 function getExcludedPlaceIDs()
 154                 {
 155                         return $this->aExcludePlaceIDs;
 156                 }
 157
 158                 function setBounded($bBoundedSearch = true)
 159                 {
 160                         $this->bBoundedSearch = (bool)$bBoundedSearch;
 161                 }
 162
 163                 function setViewBox($fLeft, $fBottom, $fRight, $fTop)
 164                 {
 165                         $this->aViewBox = array($fLeft, $fBottom, $fRight, $fTop);
 166                 }
 167
 168                 function getViewBoxString()
 169                 {
 170                         if (!$this->aViewBox) return null;
 171                         return $this->aViewBox[0].','.$this->aViewBox[3].','.$this->aViewBox[2].','.$this->aViewBox[1];
 172                 }
 173
 174                 function setRoute($aRoutePoints)
 175                 {
 176                         $this->aRoutePoints = $aRoutePoints;
 177                 }
 178
 179                 function setFeatureType($sFeatureType)
 180                 {
 181                         switch($sFeatureType)
 182                         {
 183                         case 'country':
 184                                 $this->setRankRange(4, 4);
 185                                 break;
 186                         case 'state':
 187                                 $this->setRankRange(8, 8);
 188                                 break;
 189                         case 'city':
 190                                 $this->setRankRange(14, 16);
 191                                 break;
 192                         case 'settlement':
 193                                 $this->setRankRange(8, 20);
 194                                 break;
 195                         }
 196                 }
 197
 198                 function setRankRange($iMin, $iMax)
 199                 {
 200                         $this->iMinAddressRank = (int)$iMin;
 201                         $this->iMaxAddressRank = (int)$iMax;
 202                 }
 203
 204                 function setNearPoint($aNearPoint, $fRadiusDeg = 0.1)
 205                 {
 206                         $this->aNearPoint = array((float)$aNearPoint[0], (float)$aNearPoint[1], (float)$fRadiusDeg);
 207                 }
 208
 209                 function setCountryCodesList($aCountryCodes)
 210                 {
 211                         $this->aCountryCodes = $aCountryCodes;
 212                 }
 213
 214                 function setQuery($sQueryString)
 215                 {
 216                         $this->sQuery = $sQueryString;
 217                         $this->aStructuredQuery = false;
 218                 }
 219
 220                 function getQueryString()
 221                 {
 222                         return $this->sQuery;
 223                 }
 224
 225
 226                 function loadParamArray($aParams)
 227                 {
 228                         if (isset($aParams['addressdetails'])) $this->bIncludeAddressDetails = (bool)$aParams['addressdetails'];
 229                         if ((float) CONST_Postgresql_Version > 9.2)
 230                         {
 231                                 if (isset($aParams['extratags'])) $this->bIncludeExtraTags = (bool)$aParams['extratags'];
 232                                 if (isset($aParams['namedetails'])) $this->bIncludeNameDetails = (bool)$aParams['namedetails'];
 233                         }
 234                         if (isset($aParams['bounded'])) $this->bBoundedSearch = (bool)$aParams['bounded'];
 235                         if (isset($aParams['dedupe'])) $this->bDeDupe = (bool)$aParams['dedupe'];
 236
 237                         if (isset($aParams['limit'])) $this->setLimit((int)$aParams['limit']);
 238                         if (isset($aParams['offset'])) $this->iOffset = (int)$aParams['offset'];
 239
 240                         if (isset($aParams['fallback'])) $this->bFallback = (bool)$aParams['fallback'];
 241
 242                         // List of excluded Place IDs - used for more acurate pageing
 243                         if (isset($aParams['exclude_place_ids']) && $aParams['exclude_place_ids'])
 244                         {
 245                                 foreach(explode(',',$aParams['exclude_place_ids']) as $iExcludedPlaceID)
 246                                 {
 247                                         $iExcludedPlaceID = (int)$iExcludedPlaceID;
 248                                         if ($iExcludedPlaceID)
 249                                                 $aExcludePlaceIDs[$iExcludedPlaceID] = $iExcludedPlaceID;
 250                                 }
 251
 252                                 if (isset($aExcludePlaceIDs))
 253                                         $this->aExcludePlaceIDs = $aExcludePlaceIDs;
 254                         }
 255
 256                         // Only certain ranks of feature
 257                         if (isset($aParams['featureType'])) $this->setFeatureType($aParams['featureType']);
 258                         if (isset($aParams['featuretype'])) $this->setFeatureType($aParams['featuretype']);
 259
 260                         // Country code list
 261                         if (isset($aParams['countrycodes']))
 262                         {
 263                                 $aCountryCodes = array();
 264                                 foreach(explode(',',$aParams['countrycodes']) as $sCountryCode)
 265                                 {
 266                                         if (preg_match('/^[a-zA-Z][a-zA-Z]$/', $sCountryCode))
 267                                         {
 268                                                 $aCountryCodes[] = strtolower($sCountryCode);
 269                                         }
 270                                 }
 271                                 $this->aCountryCodes = $aCountryCodes;
 272                         }
 273
 274                         if (isset($aParams['viewboxlbrt']) && $aParams['viewboxlbrt'])
 275                         {
 276                                 $aCoOrdinatesLBRT = explode(',',$aParams['viewboxlbrt']);
 277                                 $this->setViewBox($aCoOrdinatesLBRT[0], $aCoOrdinatesLBRT[1], $aCoOrdinatesLBRT[2], $aCoOrdinatesLBRT[3]);
 278                         }
 279                         else if (isset($aParams['viewbox']) && $aParams['viewbox'])
 280                         {
 281                                 $aCoOrdinatesLTRB = explode(',',$aParams['viewbox']);
 282                                 $this->setViewBox($aCoOrdinatesLTRB[0], $aCoOrdinatesLTRB[3], $aCoOrdinatesLTRB[2], $aCoOrdinatesLTRB[1]);
 283                         }
 284
 285                         if (isset($aParams['route']) && $aParams['route'] && isset($aParams['routewidth']) && $aParams['routewidth'])
 286                         {
 287                                 $aPoints = explode(',',$aParams['route']);
 288                                 if (sizeof($aPoints) % 2 != 0)
 289                                 {
 290                                         userError("Uneven number of points");
 291                                         exit;
 292                                 }
 293                                 $fPrevCoord = false;
 294                                 $aRoute = array();
 295                                 foreach($aPoints as $i => $fPoint)
 296                                 {
 297                                         if ($i%2)
 298                                         {
 299                                                 $aRoute[] = array((float)$fPoint, $fPrevCoord);
 300                                         }
 301                                         else
 302                                         {
 303                                                 $fPrevCoord = (float)$fPoint;
 304                                         }
 305                                 }
 306                                 $this->aRoutePoints = $aRoute;
 307                         }
 308                 }
 309
 310                 function setQueryFromParams($aParams)
 311                 {
 312                         // Search query
 313                         $sQuery = (isset($aParams['q'])?trim($aParams['q']):'');
 314                         if (!$sQuery)
 315                         {
 316                                 $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 317                                 $this->setReverseInPlan(false);
 318                         }
 319                         else
 320                         {
 321                                 $this->setQuery($sQuery);
 322                         }
 323                 }
 324
 325                 function loadStructuredAddressElement($sValue, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank, $aItemListValues)
 326                 {
 327                         $sValue = trim($sValue);
 328                         if (!$sValue) return false;
 329                         $this->aStructuredQuery[$sKey] = $sValue;
 330                         if ($this->iMinAddressRank == 0 && $this->iMaxAddressRank == 30)
 331                         {
 332                                 $this->iMinAddressRank = $iNewMinAddressRank;
 333                                 $this->iMaxAddressRank = $iNewMaxAddressRank;
 334                         }
 335                         if ($aItemListValues) $this->aAddressRankList = array_merge($this->aAddressRankList, $aItemListValues);
 336                         return true;
 337                 }
 338
 339                 function setStructuredQuery($sAmentiy = false, $sStreet = false, $sCity = false, $sCounty = false, $sState = false, $sCountry = false, $sPostalCode = false)
 340                 {
 341                         $this->sQuery = false;
 342
 343                         // Reset
 344                         $this->iMinAddressRank = 0;
 345                         $this->iMaxAddressRank = 30;
 346                         $this->aAddressRankList = array();
 347
 348                         $this->aStructuredQuery = array();
 349                         $this->sAllowedTypesSQLList = '';
 350
 351                         $this->loadStructuredAddressElement($sAmentiy, 'amenity', 26, 30, false);
 352                         $this->loadStructuredAddressElement($sStreet, 'street', 26, 30, false);
 353                         $this->loadStructuredAddressElement($sCity, 'city', 14, 24, false);
 354                         $this->loadStructuredAddressElement($sCounty, 'county', 9, 13, false);
 355                         $this->loadStructuredAddressElement($sState, 'state', 8, 8, false);
 356                         $this->loadStructuredAddressElement($sPostalCode, 'postalcode' , 5, 11, array(5, 11));
 357                         $this->loadStructuredAddressElement($sCountry, 'country', 4, 4, false);
 358
 359                         if (sizeof($this->aStructuredQuery) > 0)
 360                         {
 361                                 $this->sQuery = join(', ', $this->aStructuredQuery);
 362                                 if ($this->iMaxAddressRank < 30)
 363                                 {
 364                                         $sAllowedTypesSQLList = '(\'place\',\'boundary\')';
 365                                 }
 366                         }
 367                 }
 368
 369                 function fallbackStructuredQuery()
 370                 {
 371                         if (!$this->aStructuredQuery) return false;
 372
 373                         $aParams = $this->aStructuredQuery;
 374
 375                         if (sizeof($aParams) == 1) return false;
 376
 377                         $aOrderToFallback = array('postalcode', 'street', 'city', 'county', 'state');
 378
 379                         foreach($aOrderToFallback as $sType)
 380                         {
 381                                 if (isset($aParams[$sType]))
 382                                 {
 383                                         unset($aParams[$sType]);
 384                                         $this->setStructuredQuery(@$aParams['amenity'], @$aParams['street'], @$aParams['city'], @$aParams['county'], @$aParams['state'], @$aParams['country'], @$aParams['postalcode']);
 385                                         return true;
 386                                 }
 387                         }
 388
 389                         return false;
 390                 }
 391
 392                 function getDetails($aPlaceIDs)
 393                 {
 394                         if (sizeof($aPlaceIDs) == 0)  return array();
 395
 396                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 397
 398                         // Get the details for display (is this a redundant extra step?)
 399                         $sPlaceIDs = join(',',$aPlaceIDs);
 400
 401                         $sImportanceSQL = '';
 402                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxSmallSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 403                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " case when ST_Contains($this->sViewboxLargeSQL, ST_Collect(centroid)) THEN 1 ELSE 0.75 END * ";
 404
 405                         $sSQL = "select osm_type,osm_id,class,type,admin_level,rank_search,rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id, calculated_country_code as country_code,";
 406                         $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 407                         $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
 408                         $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
 409                         if ($this->bIncludeExtraTags) $sSQL .= "hstore_to_json(extratags)::text as extra,";
 410                         if ($this->bIncludeNameDetails) $sSQL .= "hstore_to_json(name)::text as names,";
 411                         $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 412                         $sSQL .= $sImportanceSQL."coalesce(importance,0.75-(rank_search::float/40)) as importance, ";
 413                         $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(CASE WHEN placex.rank_search < 28 THEN placex.place_id ELSE placex.parent_place_id END) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 414                         $sSQL .= "(extratags->'place') as extra_place ";
 415                         $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
 416                         $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
 417                         if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
 418                         if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
 419                         $sSQL .= ") ";
 420                         if ($this->sAllowedTypesSQLList) $sSQL .= "and placex.class in $this->sAllowedTypesSQLList ";
 421                         $sSQL .= "and linked_place_id is null ";
 422                         $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,calculated_country_code,importance";
 423                         if (!$this->bDeDupe) $sSQL .= ",place_id";
 424                         $sSQL .= ",langaddress ";
 425                         $sSQL .= ",placename ";
 426                         $sSQL .= ",ref ";
 427                         if ($this->bIncludeExtraTags) $sSQL .= ",extratags";
 428                         if ($this->bIncludeNameDetails) $sSQL .= ",name";
 429                         $sSQL .= ",extratags->'place' ";
 430
 431                         if (30 >= $this->iMinAddressRank && 30 <= $this->iMaxAddressRank)
 432                         {
 433                                 $sSQL .= " union ";
 434                                 $sSQL .= "select 'T' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id,'us' as country_code,";
 435                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 436                                 $sSQL .= "null as placename,";
 437                                 $sSQL .= "null as ref,";
 438                                 if ($this->bIncludeExtraTags) $sSQL .= "null as extra,";
 439                                 if ($this->bIncludeNameDetails) $sSQL .= "null as names,";
 440                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 441                                 $sSQL .= $sImportanceSQL."-1.15 as importance, ";
 442                                 $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_tiger.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 443                                 $sSQL .= "null as extra_place ";
 444                                 $sSQL .= "from location_property_tiger where place_id in ($sPlaceIDs) ";
 445                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 446                                 $sSQL .= "group by place_id";
 447                                 if (!$this->bDeDupe) $sSQL .= ",place_id ";
 448                                 $sSQL .= " union ";
 449                                 $sSQL .= "select 'L' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id, min(parent_place_id) as parent_place_id,'us' as country_code,";
 450                                 $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 451                                 $sSQL .= "null as placename,";
 452                                 $sSQL .= "null as ref,";
 453                                 if ($this->bIncludeExtraTags) $sSQL .= "null as extra,";
 454                                 if ($this->bIncludeNameDetails) $sSQL .= "null as names,";
 455                                 $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
 456                                 $sSQL .= $sImportanceSQL."-1.10 as importance, ";
 457                                 $sSQL .= "(select max(p.importance*(p.rank_address+2)) from place_addressline s, placex p where s.place_id = min(location_property_aux.parent_place_id) and p.place_id = s.address_place_id and s.isaddress and p.importance is not null) as addressimportance, ";
 458                                 $sSQL .= "null as extra_place ";
 459                                 $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
 460                                 $sSQL .= "and 30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
 461                                 $sSQL .= "group by place_id";
 462                                 if (!$this->bDeDupe) $sSQL .= ",place_id";
 463                                 $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
 464                         }
 465
 466                         $sSQL .= " order by importance desc";
 467                         if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
 468                         $aSearchResults = $this->oDB->getAll($sSQL);
 469
 470                         if (PEAR::IsError($aSearchResults))
 471                         {
 472                                 failInternalError("Could not get details for place.", $sSQL, $aSearchResults);
 473                         }
 474
 475                         return $aSearchResults;
 476                 }
 477
 478                 function getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases)
 479                 {
 480                         /*
 481                                  Calculate all searches using aValidTokens i.e.
 482                                  'Wodsworth Road, Sheffield' =>
 483
 484                                  Phrase Wordset
 485                                  0      0       (wodsworth road)
 486                                  0      1       (wodsworth)(road)
 487                                  1      0       (sheffield)
 488
 489                                  Score how good the search is so they can be ordered
 490                          */
 491                         foreach($aPhrases as $iPhrase => $sPhrase)
 492                         {
 493                                 $aNewPhraseSearches = array();
 494                                 if ($bStructuredPhrases) $sPhraseType = $aPhraseTypes[$iPhrase];
 495                                 else $sPhraseType = '';
 496
 497                                 foreach($aPhrases[$iPhrase]['wordsets'] as $iWordSet => $aWordset)
 498                                 {
 499                                         // Too many permutations - too expensive
 500                                         if ($iWordSet > 120) break;
 501
 502                                         $aWordsetSearches = $aSearches;
 503
 504                                         // Add all words from this wordset
 505                                         foreach($aWordset as $iToken => $sToken)
 506                                         {
 507                                                 //echo "<br><b>$sToken</b>";
 508                                                 $aNewWordsetSearches = array();
 509
 510                                                 foreach($aWordsetSearches as $aCurrentSearch)
 511                                                 {
 512                                                         //echo "<i>";
 513                                                         //var_dump($aCurrentSearch);
 514                                                         //echo "</i>";
 515
 516                                                         // If the token is valid
 517                                                         if (isset($aValidTokens[' '.$sToken]))
 518                                                         {
 519                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTerm)
 520                                                                 {
 521                                                                         $aSearch = $aCurrentSearch;
 522                                                                         $aSearch['iSearchRank']++;
 523                                                                         if (($sPhraseType == '' || $sPhraseType == 'country') && !empty($aSearchTerm['country_code']) && $aSearchTerm['country_code'] != '0')
 524                                                                         {
 525                                                                                 if ($aSearch['sCountryCode'] === false)
 526                                                                                 {
 527                                                                                         $aSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 528                                                                                         // Country is almost always at the end of the string - increase score for finding it anywhere else (optimisation)
 529                                                                                         if (($iToken+1 != sizeof($aWordset) || $iPhrase+1 != sizeof($aPhrases)))
 530                                                                                         {
 531                                                                                                 $aSearch['iSearchRank'] += 5;
 532                                                                                         }
 533                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 534                                                                                 }
 535                                                                         }
 536                                                                         elseif (isset($aSearchTerm['lat']) && $aSearchTerm['lat'] !== '' && $aSearchTerm['lat'] !== null)
 537                                                                         {
 538                                                                                 if ($aSearch['fLat'] === '')
 539                                                                                 {
 540                                                                                         $aSearch['fLat'] = $aSearchTerm['lat'];
 541                                                                                         $aSearch['fLon'] = $aSearchTerm['lon'];
 542                                                                                         $aSearch['fRadius'] = $aSearchTerm['radius'];
 543                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 544                                                                                 }
 545                                                                         }
 546                                                                         elseif ($sPhraseType == 'postalcode')
 547                                                                         {
 548                                                                                 // 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
 549                                                                                 if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 550                                                                                 {
 551                                                                                         // If we already have a name try putting the postcode first
 552                                                                                         if (sizeof($aSearch['aName']))
 553                                                                                         {
 554                                                                                                 $aNewSearch = $aSearch;
 555                                                                                                 $aNewSearch['aAddress'] = array_merge($aNewSearch['aAddress'], $aNewSearch['aName']);
 556                                                                                                 $aNewSearch['aName'] = array();
 557                                                                                                 $aNewSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 558                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aNewSearch;
 559                                                                                         }
 560
 561                                                                                         if (sizeof($aSearch['aName']))
 562                                                                                         {
 563                                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false))
 564                                                                                                 {
 565                                                                                                         $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 566                                                                                                 }
 567                                                                                                 else
 568                                                                                                 {
 569                                                                                                         $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 570                                                                                                         $aSearch['iSearchRank'] += 1000; // skip;
 571                                                                                                 }
 572                                                                                         }
 573                                                                                         else
 574                                                                                         {
 575                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 576                                                                                                 //$aSearch['iNamePhrase'] = $iPhrase;
 577                                                                                         }
 578                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 579                                                                                 }
 580
 581                                                                         }
 582                                                                         elseif (($sPhraseType == '' || $sPhraseType == 'street') && $aSearchTerm['class'] == 'place' && $aSearchTerm['type'] == 'house')
 583                                                                         {
 584                                                                                 if ($aSearch['sHouseNumber'] === '')
 585                                                                                 {
 586                                                                                         $aSearch['sHouseNumber'] = $sToken;
 587                                                                                         // sanity check: if the housenumber is not mainly made
 588                                                                                         // up of numbers, add a penalty
 589                                                                                         if (preg_match_all("/[^0-9]/", $sToken, $aMatches) > 2) $aSearch['iSearchRank']++;
 590                                                                                         // also housenumbers should appear in the first or second phrase
 591                                                                                         if ($iPhrase > 1) $aSearch['iSearchRank'] += 1;
 592                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 593                                                                                         /*
 594                                                                                         // Fall back to not searching for this item (better than nothing)
 595                                                                                         $aSearch = $aCurrentSearch;
 596                                                                                         $aSearch['iSearchRank'] += 1;
 597                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 598                                                                                          */
 599                                                                                 }
 600                                                                         }
 601                                                                         elseif ($sPhraseType == '' && $aSearchTerm['class'] !== '' && $aSearchTerm['class'] !== null)
 602                                                                         {
 603                                                                                 if ($aSearch['sClass'] === '')
 604                                                                                 {
 605                                                                                         $aSearch['sOperator'] = $aSearchTerm['operator'];
 606                                                                                         $aSearch['sClass'] = $aSearchTerm['class'];
 607                                                                                         $aSearch['sType'] = $aSearchTerm['type'];
 608                                                                                         if (sizeof($aSearch['aName'])) $aSearch['sOperator'] = 'name';
 609                                                                                         else $aSearch['sOperator'] = 'near'; // near = in for the moment
 610                                                                                         if (strlen($aSearchTerm['operator']) == 0) $aSearch['iSearchRank'] += 1;
 611
 612                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 613                                                                                 }
 614                                                                         }
 615                                                                         elseif (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 616                                                                         {
 617                                                                                 if (sizeof($aSearch['aName']))
 618                                                                                 {
 619                                                                                         if ((!$bStructuredPhrases || $iPhrase > 0) && $sPhraseType != 'country' && (!isset($aValidTokens[$sToken]) || strpos($sToken, ' ') !== false))
 620                                                                                         {
 621                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 622                                                                                         }
 623                                                                                         else
 624                                                                                         {
 625                                                                                                 $aCurrentSearch['aFullNameAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 626                                                                                                 $aSearch['iSearchRank'] += 1000; // skip;
 627                                                                                         }
 628                                                                                 }
 629                                                                                 else
 630                                                                                 {
 631                                                                                         $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 632                                                                                         //$aSearch['iNamePhrase'] = $iPhrase;
 633                                                                                 }
 634                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 635                                                                         }
 636                                                                 }
 637                                                         }
 638                                                         // Look for partial matches.
 639                                                         // Note that there is no point in adding country terms here
 640                                                         // because country are omitted in the address.
 641                                                         if (isset($aValidTokens[$sToken]) && $sPhraseType != 'country')
 642                                                         {
 643                                                                 // Allow searching for a word - but at extra cost
 644                                                                 foreach($aValidTokens[$sToken] as $aSearchTerm)
 645                                                                 {
 646                                                                         if (isset($aSearchTerm['word_id']) && $aSearchTerm['word_id'])
 647                                                                         {
 648                                                                                 if ((!$bStructuredPhrases || $iPhrase > 0) && sizeof($aCurrentSearch['aName']) && strpos($sToken, ' ') === false)
 649                                                                                 {
 650                                                                                         $aSearch = $aCurrentSearch;
 651                                                                                         $aSearch['iSearchRank'] += 1;
 652                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 653                                                                                         {
 654                                                                                                 $aSearch['aAddress'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 655                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 656                                                                                         }
 657                                                                                         elseif (isset($aValidTokens[' '.$sToken])) // revert to the token version?
 658                                                                                         {
 659                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 660                                                                                                 $aSearch['iSearchRank'] += 1;
 661                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 662                                                                                                 foreach($aValidTokens[' '.$sToken] as $aSearchTermToken)
 663                                                                                                 {
 664                                                                                                         if (empty($aSearchTermToken['country_code'])
 665                                                                                                                         && empty($aSearchTermToken['lat'])
 666                                                                                                                         && empty($aSearchTermToken['class']))
 667                                                                                                         {
 668                                                                                                                 $aSearch = $aCurrentSearch;
 669                                                                                                                 $aSearch['iSearchRank'] += 1;
 670                                                                                                                 $aSearch['aAddress'][$aSearchTermToken['word_id']] = $aSearchTermToken['word_id'];
 671                                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 672                                                                                                         }
 673                                                                                                 }
 674                                                                                         }
 675                                                                                         else
 676                                                                                         {
 677                                                                                                 $aSearch['aAddressNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 678                                                                                                 if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 679                                                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 680                                                                                         }
 681                                                                                 }
 682
 683                                                                                 if (!sizeof($aCurrentSearch['aName']) || $aCurrentSearch['iNamePhrase'] == $iPhrase)
 684                                                                                 {
 685                                                                                         $aSearch = $aCurrentSearch;
 686                                                                                         $aSearch['iSearchRank'] += 1;
 687                                                                                         if (!sizeof($aCurrentSearch['aName'])) $aSearch['iSearchRank'] += 1;
 688                                                                                         if (preg_match('#^[0-9]+$#', $sToken)) $aSearch['iSearchRank'] += 2;
 689                                                                                         if ($aWordFrequencyScores[$aSearchTerm['word_id']] < CONST_Max_Word_Frequency)
 690                                                                                                 $aSearch['aName'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 691                                                                                         else
 692                                                                                                 $aSearch['aNameNonSearch'][$aSearchTerm['word_id']] = $aSearchTerm['word_id'];
 693                                                                                         $aSearch['iNamePhrase'] = $iPhrase;
 694                                                                                         if ($aSearch['iSearchRank'] < $this->iMaxRank) $aNewWordsetSearches[] = $aSearch;
 695                                                                                 }
 696                                                                         }
 697                                                                 }
 698                                                         }
 699                                                         else
 700                                                         {
 701                                                                 // Allow skipping a word - but at EXTREAM cost
 702                                                                 //$aSearch = $aCurrentSearch;
 703                                                                 //$aSearch['iSearchRank']+=100;
 704                                                                 //$aNewWordsetSearches[] = $aSearch;
 705                                                         }
 706                                                 }
 707                                                 // Sort and cut
 708                                                 usort($aNewWordsetSearches, 'bySearchRank');
 709                                                 $aWordsetSearches = array_slice($aNewWordsetSearches, 0, 50);
 710                                         }
 711                                         //var_Dump('<hr>',sizeof($aWordsetSearches)); exit;
 712
 713                                         $aNewPhraseSearches = array_merge($aNewPhraseSearches, $aNewWordsetSearches);
 714                                         usort($aNewPhraseSearches, 'bySearchRank');
 715
 716                                         $aSearchHash = array();
 717                                         foreach($aNewPhraseSearches as $iSearch => $aSearch)
 718                                         {
 719                                                 $sHash = serialize($aSearch);
 720                                                 if (isset($aSearchHash[$sHash])) unset($aNewPhraseSearches[$iSearch]);
 721                                                 else $aSearchHash[$sHash] = 1;
 722                                         }
 723
 724                                         $aNewPhraseSearches = array_slice($aNewPhraseSearches, 0, 50);
 725                                 }
 726
 727                                 // Re-group the searches by their score, junk anything over 20 as just not worth trying
 728                                 $aGroupedSearches = array();
 729                                 foreach($aNewPhraseSearches as $aSearch)
 730                                 {
 731                                         if ($aSearch['iSearchRank'] < $this->iMaxRank)
 732                                         {
 733                                                 if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
 734                                                 $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
 735                                         }
 736                                 }
 737                                 ksort($aGroupedSearches);
 738
 739                                 $iSearchCount = 0;
 740                                 $aSearches = array();
 741                                 foreach($aGroupedSearches as $iScore => $aNewSearches)
 742                                 {
 743                                         $iSearchCount += sizeof($aNewSearches);
 744                                         $aSearches = array_merge($aSearches, $aNewSearches);
 745                                         if ($iSearchCount > 50) break;
 746                                 }
 747
 748                                 //if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
 749
 750                         }
 751                         return $aGroupedSearches;
 752
 753                 }
 754
 755                 /* Perform the actual query lookup.
 756
 757                         Returns an ordered list of results, each with the following fields:
 758                                 osm_type: type of corresponding OSM object
 759                                                         N - node
 760                                                         W - way
 761                                                         R - relation
 762                                                         P - postcode (internally computed)
 763                                 osm_id: id of corresponding OSM object
 764                                 class: general object class (corresponds to tag key of primary OSM tag)
 765                                 type: subclass of object (corresponds to tag value of primary OSM tag)
 766                                 admin_level: see http://wiki.openstreetmap.org/wiki/Admin_level
 767                                 rank_search: rank in search hierarchy
 768                                                         (see also http://wiki.openstreetmap.org/wiki/Nominatim/Development_overview#Country_to_street_level)
 769                                 rank_address: rank in address hierarchy (determines orer in address)
 770                                 place_id: internal key (may differ between different instances)
 771                                 country_code: ISO country code
 772                                 langaddress: localized full address
 773                                 placename: localized name of object
 774                                 ref: content of ref tag (if available)
 775                                 lon: longitude
 776                                 lat: latitude
 777                                 importance: importance of place based on Wikipedia link count
 778                                 addressimportance: cumulated importance of address elements
 779                                 extra_place: type of place (for admin boundaries, if there is a place tag)
 780                                 aBoundingBox: bounding Box
 781                                 label: short description of the object class/type (English only)
 782                                 name: full name (currently the same as langaddress)
 783                                 foundorder: secondary ordering for places with same importance
 784                 */
 785                 function lookup()
 786                 {
 787                         if (!$this->sQuery && !$this->aStructuredQuery) return false;
 788
 789                         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$this->aLangPrefOrder))."]";
 790                         $sCountryCodesSQL = false;
 791                         if ($this->aCountryCodes && sizeof($this->aCountryCodes))
 792                         {
 793                                 $sCountryCodesSQL = join(',', array_map('addQuotes', $this->aCountryCodes));
 794                         }
 795
 796                         $sQuery = $this->sQuery;
 797
 798                         // Conflicts between US state abreviations and various words for 'the' in different languages
 799                         if (isset($this->aLangPrefOrder['name:en']))
 800                         {
 801                                 $sQuery = preg_replace('/(^|,)\s*il\s*(,|$)/','\1illinois\2', $sQuery);
 802                                 $sQuery = preg_replace('/(^|,)\s*al\s*(,|$)/','\1alabama\2', $sQuery);
 803                                 $sQuery = preg_replace('/(^|,)\s*la\s*(,|$)/','\1louisiana\2', $sQuery);
 804                         }
 805
 806                         // View Box SQL
 807                         $sViewboxCentreSQL = false;
 808                         $bBoundingBoxSearch = false;
 809                         if ($this->aViewBox)
 810                         {
 811                                 $fHeight = $this->aViewBox[0]-$this->aViewBox[2];
 812                                 $fWidth = $this->aViewBox[1]-$this->aViewBox[3];
 813                                 $aBigViewBox[0] = $this->aViewBox[0] + $fHeight;
 814                                 $aBigViewBox[2] = $this->aViewBox[2] - $fHeight;
 815                                 $aBigViewBox[1] = $this->aViewBox[1] + $fWidth;
 816                                 $aBigViewBox[3] = $this->aViewBox[3] - $fWidth;
 817
 818                                 $this->sViewboxSmallSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$this->aViewBox[0].",".(float)$this->aViewBox[1]."),ST_Point(".(float)$this->aViewBox[2].",".(float)$this->aViewBox[3].")),4326)";
 819                                 $this->sViewboxLargeSQL = "ST_SetSRID(ST_MakeBox2D(ST_Point(".(float)$aBigViewBox[0].",".(float)$aBigViewBox[1]."),ST_Point(".(float)$aBigViewBox[2].",".(float)$aBigViewBox[3].")),4326)";
 820                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 821                         }
 822
 823                         // Route SQL
 824                         if ($this->aRoutePoints)
 825                         {
 826                                 $sViewboxCentreSQL = "ST_SetSRID('LINESTRING(";
 827                                 $bFirst = true;
 828                                 foreach($this->aRoutePoints as $aPoint)
 829                                 {
 830                                         if (!$bFirst) $sViewboxCentreSQL .= ",";
 831                                         $sViewboxCentreSQL .= $aPoint[0].' '.$aPoint[1];
 832                                         $bFirst = false;
 833                                 }
 834                                 $sViewboxCentreSQL .= ")'::geometry,4326)";
 835
 836                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/69).")";
 837                                 $this->sViewboxSmallSQL = $this->oDB->getOne($sSQL);
 838                                 if (PEAR::isError($this->sViewboxSmallSQL))
 839                                 {
 840                                         failInternalError("Could not get small viewbox.", $sSQL, $this->sViewboxSmallSQL);
 841                                 }
 842                                 $this->sViewboxSmallSQL = "'".$this->sViewboxSmallSQL."'::geometry";
 843
 844                                 $sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/30).")";
 845                                 $this->sViewboxLargeSQL = $this->oDB->getOne($sSQL);
 846                                 if (PEAR::isError($this->sViewboxLargeSQL))
 847                                 {
 848                                         failInternalError("Could not get large viewbox.", $sSQL, $this->sViewboxLargeSQL);
 849                                 }
 850                                 $this->sViewboxLargeSQL = "'".$this->sViewboxLargeSQL."'::geometry";
 851                                 $bBoundingBoxSearch = $this->bBoundedSearch;
 852                         }
 853
 854                         // Do we have anything that looks like a lat/lon pair?
 855                         if ( $aLooksLike = looksLikeLatLonPair($sQuery) ){
 856                                 $this->setNearPoint(array($aLooksLike['lat'], $aLooksLike['lon']));
 857                                 $sQuery = $aLooksLike['query'];
 858                         }
 859
 860                         $aSearchResults = array();
 861                         if ($sQuery || $this->aStructuredQuery)
 862                         {
 863                                 // Start with a blank search
 864                                 $aSearches = array(
 865                                         array('iSearchRank' => 0,
 866                                                                 'iNamePhrase' => -1,
 867                                                                 'sCountryCode' => false,
 868                                                                 'aName' => array(),
 869                                                                 'aAddress' => array(),
 870                                                                 'aFullNameAddress' => array(),
 871                                                                 'aNameNonSearch' => array(),
 872                                                                 'aAddressNonSearch' => array(),
 873                                                                 'sOperator' => '',
 874                                                                 'aFeatureName' => array(),
 875                                                                 'sClass' => '',
 876                                                                 'sType' => '',
 877                                                                 'sHouseNumber' => '',
 878                                                                 'fLat' => '',
 879                                                                 'fLon' => '',
 880                                                                 'fRadius' => ''
 881                                                         )
 882                                 );
 883
 884                                 // Do we have a radius search?
 885                                 $sNearPointSQL = false;
 886                                 if ($this->aNearPoint)
 887                                 {
 888                                         $sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$this->aNearPoint[1].",".(float)$this->aNearPoint[0]."),4326)";
 889                                         $aSearches[0]['fLat'] = (float)$this->aNearPoint[0];
 890                                         $aSearches[0]['fLon'] = (float)$this->aNearPoint[1];
 891                                         $aSearches[0]['fRadius'] = (float)$this->aNearPoint[2];
 892                                 }
 893
 894                                 // Any 'special' terms in the search?
 895                                 $bSpecialTerms = false;
 896                                 preg_match_all('/\\[(.*)=(.*)\\]/', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 897                                 $aSpecialTerms = array();
 898                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 899                                 {
 900                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 901                                         $aSpecialTerms[strtolower($aSpecialTerm[1])] = $aSpecialTerm[2];
 902                                 }
 903
 904                                 preg_match_all('/\\[([\\w ]*)\\]/u', $sQuery, $aSpecialTermsRaw, PREG_SET_ORDER);
 905                                 $aSpecialTerms = array();
 906                                 if (isset($this->aStructuredQuery['amenity']) && $this->aStructuredQuery['amenity'])
 907                                 {
 908                                         $aSpecialTermsRaw[] = array('['.$this->aStructuredQuery['amenity'].']', $this->aStructuredQuery['amenity']);
 909                                         unset($this->aStructuredQuery['amenity']);
 910                                 }
 911                                 foreach($aSpecialTermsRaw as $aSpecialTerm)
 912                                 {
 913                                         $sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
 914                                         $sToken = $this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string");
 915                                         $sSQL = 'select * from (select word_id,word_token, word, class, type, country_code, operator';
 916                                         $sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 917                                         if (CONST_Debug) var_Dump($sSQL);
 918                                         $aSearchWords = $this->oDB->getAll($sSQL);
 919                                         $aNewSearches = array();
 920                                         foreach($aSearches as $aSearch)
 921                                         {
 922                                                 foreach($aSearchWords as $aSearchTerm)
 923                                                 {
 924                                                         $aNewSearch = $aSearch;
 925                                                         if ($aSearchTerm['country_code'])
 926                                                         {
 927                                                                 $aNewSearch['sCountryCode'] = strtolower($aSearchTerm['country_code']);
 928                                                                 $aNewSearches[] = $aNewSearch;
 929                                                                 $bSpecialTerms = true;
 930                                                         }
 931                                                         if ($aSearchTerm['class'])
 932                                                         {
 933                                                                 $aNewSearch['sClass'] = $aSearchTerm['class'];
 934                                                                 $aNewSearch['sType'] = $aSearchTerm['type'];
 935                                                                 $aNewSearches[] = $aNewSearch;
 936                                                                 $bSpecialTerms = true;
 937                                                         }
 938                                                 }
 939                                         }
 940                                         $aSearches = $aNewSearches;
 941                                 }
 942
 943                                 // Split query into phrases
 944                                 // Commas are used to reduce the search space by indicating where phrases split
 945                                 if ($this->aStructuredQuery)
 946                                 {
 947                                         $aPhrases = $this->aStructuredQuery;
 948                                         $bStructuredPhrases = true;
 949                                 }
 950                                 else
 951                                 {
 952                                         $aPhrases = explode(',',$sQuery);
 953                                         $bStructuredPhrases = false;
 954                                 }
 955
 956                                 // Convert each phrase to standard form
 957                                 // Create a list of standard words
 958                                 // Get all 'sets' of words
 959                                 // Generate a complete list of all
 960                                 $aTokens = array();
 961                                 foreach($aPhrases as $iPhrase => $sPhrase)
 962                                 {
 963                                         $aPhrase = $this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string");
 964                                         if (PEAR::isError($aPhrase))
 965                                         {
 966                                                 userError("Illegal query string (not an UTF-8 string): ".$sPhrase);
 967                                                 if (CONST_Debug) var_dump($aPhrase);
 968                                                 exit;
 969                                         }
 970                                         if (trim($aPhrase['string']))
 971                                         {
 972                                                 $aPhrases[$iPhrase] = $aPhrase;
 973                                                 $aPhrases[$iPhrase]['words'] = explode(' ',$aPhrases[$iPhrase]['string']);
 974                                                 $aPhrases[$iPhrase]['wordsets'] = getWordSets($aPhrases[$iPhrase]['words'], 0);
 975                                                 $aTokens = array_merge($aTokens, getTokensFromSets($aPhrases[$iPhrase]['wordsets']));
 976                                         }
 977                                         else
 978                                         {
 979                                                 unset($aPhrases[$iPhrase]);
 980                                         }
 981                                 }
 982
 983                                 // Reindex phrases - we make assumptions later on that they are numerically keyed in order
 984                                 $aPhraseTypes = array_keys($aPhrases);
 985                                 $aPhrases = array_values($aPhrases);
 986
 987                                 if (sizeof($aTokens))
 988                                 {
 989                                         // Check which tokens we have, get the ID numbers
 990                                         $sSQL = 'select word_id,word_token, word, class, type, country_code, operator, search_name_count';
 991                                         $sSQL .= ' from word where word_token in ('.join(',',array_map("getDBQuoted",$aTokens)).')';
 992
 993                                         if (CONST_Debug) var_Dump($sSQL);
 994
 995                                         $aValidTokens = array();
 996                                         if (sizeof($aTokens)) $aDatabaseWords = $this->oDB->getAll($sSQL);
 997                                         else $aDatabaseWords = array();
 998                                         if (PEAR::IsError($aDatabaseWords))
 999                                         {
1000                                                 failInternalError("Could not get word tokens.", $sSQL, $aDatabaseWords);
1001                                         }
1002                                         $aPossibleMainWordIDs = array();
1003                                         $aWordFrequencyScores = array();
1004                                         foreach($aDatabaseWords as $aToken)
1005                                         {
1006                                                 // Very special case - require 2 letter country param to match the country code found
1007                                                 if ($bStructuredPhrases && $aToken['country_code'] && !empty($this->aStructuredQuery['country'])
1008                                                                 && strlen($this->aStructuredQuery['country']) == 2 && strtolower($this->aStructuredQuery['country']) != $aToken['country_code'])
1009                                                 {
1010                                                         continue;
1011                                                 }
1012
1013                                                 if (isset($aValidTokens[$aToken['word_token']]))
1014                                                 {
1015                                                         $aValidTokens[$aToken['word_token']][] = $aToken;
1016                                                 }
1017                                                 else
1018                                                 {
1019                                                         $aValidTokens[$aToken['word_token']] = array($aToken);
1020                                                 }
1021                                                 if (!$aToken['class'] && !$aToken['country_code']) $aPossibleMainWordIDs[$aToken['word_id']] = 1;
1022                                                 $aWordFrequencyScores[$aToken['word_id']] = $aToken['search_name_count'] + 1;
1023                                         }
1024                                         if (CONST_Debug) var_Dump($aPhrases, $aValidTokens);
1025
1026                                         // Try and calculate GB postcodes we might be missing
1027                                         foreach($aTokens as $sToken)
1028                                         {
1029                                                 // Source of gb postcodes is now definitive - always use
1030                                                 if (preg_match('/^([A-Z][A-Z]?[0-9][0-9A-Z]? ?[0-9])([A-Z][A-Z])$/', strtoupper(trim($sToken)), $aData))
1031                                                 {
1032                                                         if (substr($aData[1],-2,1) != ' ')
1033                                                         {
1034                                                                 $aData[0] = substr($aData[0],0,strlen($aData[1])-1).' '.substr($aData[0],strlen($aData[1])-1);
1035                                                                 $aData[1] = substr($aData[1],0,-1).' '.substr($aData[1],-1,1);
1036                                                         }
1037                                                         $aGBPostcodeLocation = gbPostcodeCalculate($aData[0], $aData[1], $aData[2], $this->oDB);
1038                                                         if ($aGBPostcodeLocation)
1039                                                         {
1040                                                                 $aValidTokens[$sToken] = $aGBPostcodeLocation;
1041                                                         }
1042                                                 }
1043                                                 // US ZIP+4 codes - if there is no token,
1044                                                 //      merge in the 5-digit ZIP code
1045                                                 else if (!isset($aValidTokens[$sToken]) && preg_match('/^([0-9]{5}) [0-9]{4}$/', $sToken, $aData))
1046                                                 {
1047                                                         if (isset($aValidTokens[$aData[1]]))
1048                                                         {
1049                                                                 foreach($aValidTokens[$aData[1]] as $aToken)
1050                                                                 {
1051                                                                         if (!$aToken['class'])
1052                                                                         {
1053                                                                                 if (isset($aValidTokens[$sToken]))
1054                                                                                 {
1055                                                                                         $aValidTokens[$sToken][] = $aToken;
1056                                                                                 }
1057                                                                                 else
1058                                                                                 {
1059                                                                                         $aValidTokens[$sToken] = array($aToken);
1060                                                                                 }
1061                                                                         }
1062                                                                 }
1063                                                         }
1064                                                 }
1065                                         }
1066
1067                                         foreach($aTokens as $sToken)
1068                                         {
1069                                                 // Unknown single word token with a number - assume it is a house number
1070                                                 if (!isset($aValidTokens[' '.$sToken]) && strpos($sToken,' ') === false && preg_match('/[0-9]/', $sToken))
1071                                                 {
1072                                                         $aValidTokens[' '.$sToken] = array(array('class'=>'place','type'=>'house'));
1073                                                 }
1074                                         }
1075
1076                                         // Any words that have failed completely?
1077                                         // TODO: suggestions
1078
1079                                         // Start the search process
1080                                         $aResultPlaceIDs = array();
1081
1082                                         $aGroupedSearches = $this->getGroupedSearches($aSearches, $aPhraseTypes, $aPhrases, $aValidTokens, $aWordFrequencyScores, $bStructuredPhrases);
1083
1084                                         if ($this->bReverseInPlan)
1085                                         {
1086                                                 // Reverse phrase array and also reverse the order of the wordsets in
1087                                                 // the first and final phrase. Don't bother about phrases in the middle
1088                                                 // because order in the address doesn't matter.
1089                                                 $aPhrases = array_reverse($aPhrases);
1090                                                 $aPhrases[0]['wordsets'] = getInverseWordSets($aPhrases[0]['words'], 0);
1091                                                 if (sizeof($aPhrases) > 1)
1092                                                 {
1093                                                         $aFinalPhrase = end($aPhrases);
1094                                                         $aPhrases[sizeof($aPhrases)-1]['wordsets'] = getInverseWordSets($aFinalPhrase['words'], 0);
1095                                                 }
1096                                                 $aReverseGroupedSearches = $this->getGroupedSearches($aSearches, null, $aPhrases, $aValidTokens, $aWordFrequencyScores, false);
1097
1098                                                 foreach($aGroupedSearches as $aSearches)
1099                                                 {
1100                                                         foreach($aSearches as $aSearch)
1101                                                         {
1102                                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1103                                                                 {
1104                                                                         if (!isset($aReverseGroupedSearches[$aSearch['iSearchRank']])) $aReverseGroupedSearches[$aSearch['iSearchRank']] = array();
1105                                                                         $aReverseGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1106                                                                 }
1107
1108                                                         }
1109                                                 }
1110
1111                                                 $aGroupedSearches = $aReverseGroupedSearches;
1112                                                 ksort($aGroupedSearches);
1113                                         }
1114                                 }
1115                                 else
1116                                 {
1117                                         // Re-group the searches by their score, junk anything over 20 as just not worth trying
1118                                         $aGroupedSearches = array();
1119                                         foreach($aSearches as $aSearch)
1120                                         {
1121                                                 if ($aSearch['iSearchRank'] < $this->iMaxRank)
1122                                                 {
1123                                                         if (!isset($aGroupedSearches[$aSearch['iSearchRank']])) $aGroupedSearches[$aSearch['iSearchRank']] = array();
1124                                                         $aGroupedSearches[$aSearch['iSearchRank']][] = $aSearch;
1125                                                 }
1126                                         }
1127                                         ksort($aGroupedSearches);
1128                                 }
1129
1130                                 if (CONST_Debug) var_Dump($aGroupedSearches);
1131
1132                                 if (CONST_Search_TryDroppedAddressTerms && sizeof($this->aStructuredQuery) > 0)
1133                                 {
1134                                         $aCopyGroupedSearches = $aGroupedSearches;
1135                                         foreach($aCopyGroupedSearches as $iGroup => $aSearches)
1136                                         {
1137                                                 foreach($aSearches as $iSearch => $aSearch)
1138                                                 {
1139                                                         $aReductionsList = array($aSearch['aAddress']);
1140                                                         $iSearchRank = $aSearch['iSearchRank'];
1141                                                         while(sizeof($aReductionsList) > 0)
1142                                                         {
1143                                                                 $iSearchRank += 5;
1144                                                                 if ($iSearchRank > iMaxRank) break 3;
1145                                                                 $aNewReductionsList = array();
1146                                                                 foreach($aReductionsList as $aReductionsWordList)
1147                                                                 {
1148                                                                         for ($iReductionWord = 0; $iReductionWord < sizeof($aReductionsWordList); $iReductionWord++)
1149                                                                         {
1150                                                                                 $aReductionsWordListResult = array_merge(array_slice($aReductionsWordList, 0, $iReductionWord), array_slice($aReductionsWordList, $iReductionWord+1));
1151                                                                                 $aReverseSearch = $aSearch;
1152                                                                                 $aSearch['aAddress'] = $aReductionsWordListResult;
1153                                                                                 $aSearch['iSearchRank'] = $iSearchRank;
1154                                                                                 $aGroupedSearches[$iSearchRank][] = $aReverseSearch;
1155                                                                                 if (sizeof($aReductionsWordListResult) > 0)
1156                                                                                 {
1157                                                                                         $aNewReductionsList[] = $aReductionsWordListResult;
1158                                                                                 }
1159                                                                         }
1160                                                                 }
1161                                                                 $aReductionsList = $aNewReductionsList;
1162                                                         }
1163                                                 }
1164                                         }
1165                                         ksort($aGroupedSearches);
1166                                 }
1167
1168                                 // Filter out duplicate searches
1169                                 $aSearchHash = array();
1170                                 foreach($aGroupedSearches as $iGroup => $aSearches)
1171                                 {
1172                                         foreach($aSearches as $iSearch => $aSearch)
1173                                         {
1174                                                 $sHash = serialize($aSearch);
1175                                                 if (isset($aSearchHash[$sHash]))
1176                                                 {
1177                                                         unset($aGroupedSearches[$iGroup][$iSearch]);
1178                                                         if (sizeof($aGroupedSearches[$iGroup]) == 0) unset($aGroupedSearches[$iGroup]);
1179                                                 }
1180                                                 else
1181                                                 {
1182                                                         $aSearchHash[$sHash] = 1;
1183                                                 }
1184                                         }
1185                                 }
1186
1187                                 if (CONST_Debug) _debugDumpGroupedSearches($aGroupedSearches, $aValidTokens);
1188
1189                                 $iGroupLoop = 0;
1190                                 $iQueryLoop = 0;
1191                                 foreach($aGroupedSearches as $iGroupedRank => $aSearches)
1192                                 {
1193                                         $iGroupLoop++;
1194                                         foreach($aSearches as $aSearch)
1195                                         {
1196                                                 $iQueryLoop++;
1197
1198                                                 if (CONST_Debug) { echo "<hr><b>Search Loop, group $iGroupLoop, loop $iQueryLoop</b>"; }
1199                                                 if (CONST_Debug) _debugDumpGroupedSearches(array($iGroupedRank => array($aSearch)), $aValidTokens);
1200
1201                                                 // No location term?
1202                                                 if (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && !$aSearch['fLon'])
1203                                                 {
1204                                                         if ($aSearch['sCountryCode'] && !$aSearch['sClass'] && !$aSearch['sHouseNumber'])
1205                                                         {
1206                                                                 // Just looking for a country by code - look it up
1207                                                                 if (4 >= $this->iMinAddressRank && 4 <= $this->iMaxAddressRank)
1208                                                                 {
1209                                                                         $sSQL = "select place_id from placex where calculated_country_code='".$aSearch['sCountryCode']."' and rank_search = 4";
1210                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1211                                                                         if ($bBoundingBoxSearch)
1212                                                                                 $sSQL .= " and _st_intersects($this->sViewboxSmallSQL, geometry)";
1213                                                                         $sSQL .= " order by st_area(geometry) desc limit 1";
1214                                                                         if (CONST_Debug) var_dump($sSQL);
1215                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1216                                                                 }
1217                                                                 else
1218                                                                 {
1219                                                                         $aPlaceIDs = array();
1220                                                                 }
1221                                                         }
1222                                                         else
1223                                                         {
1224                                                                 if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
1225                                                                 if (!$aSearch['sClass']) continue;
1226                                                                 $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1227                                                                 if ($this->oDB->getOne($sSQL))
1228                                                                 {
1229                                                                         $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1230                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1231                                                                         $sSQL .= " where st_contains($this->sViewboxSmallSQL, ct.centroid)";
1232                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1233                                                                         if (sizeof($this->aExcludePlaceIDs))
1234                                                                         {
1235                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1236                                                                         }
1237                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1238                                                                         $sSQL .= " limit $this->iLimit";
1239                                                                         if (CONST_Debug) var_dump($sSQL);
1240                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1241
1242                                                                         // If excluded place IDs are given, it is fair to assume that
1243                                                                         // there have been results in the small box, so no further
1244                                                                         // expansion in that case.
1245                                                                         // Also don't expand if bounded results were requested.
1246                                                                         if (!sizeof($aPlaceIDs) && !sizeof($this->aExcludePlaceIDs) && !$this->bBoundedSearch)
1247                                                                         {
1248                                                                                 $sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
1249                                                                                 if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
1250                                                                                 $sSQL .= " where st_contains($this->sViewboxLargeSQL, ct.centroid)";
1251                                                                                 if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1252                                                                                 if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
1253                                                                                 $sSQL .= " limit $this->iLimit";
1254                                                                                 if (CONST_Debug) var_dump($sSQL);
1255                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1256                                                                         }
1257                                                                 }
1258                                                                 else
1259                                                                 {
1260                                                                         $sSQL = "select place_id from placex where class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1261                                                                         $sSQL .= " and st_contains($this->sViewboxSmallSQL, geometry) and linked_place_id is null";
1262                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1263                                                                         if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, centroid) asc";
1264                                                                         $sSQL .= " limit $this->iLimit";
1265                                                                         if (CONST_Debug) var_dump($sSQL);
1266                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1267                                                                 }
1268                                                         }
1269                                                 }
1270                                                 else
1271                                                 {
1272                                                         $aPlaceIDs = array();
1273
1274                                                         // First we need a position, either aName or fLat or both
1275                                                         $aTerms = array();
1276                                                         $aOrder = array();
1277
1278                                                         if ($aSearch['sHouseNumber'] && sizeof($aSearch['aAddress']))
1279                                                         {
1280                                                                 $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1281                                                                 $aOrder[] = "exists(select place_id from placex where parent_place_id = search_name.place_id and transliteration(housenumber) ~* E'".$sHouseNumberRegex."' limit 1) desc";
1282                                                         }
1283
1284                                                         // TODO: filter out the pointless search terms (2 letter name tokens and less)
1285                                                         // they might be right - but they are just too darned expensive to run
1286                                                         if (sizeof($aSearch['aName'])) $aTerms[] = "name_vector @> ARRAY[".join($aSearch['aName'],",")."]";
1287                                                         if (sizeof($aSearch['aNameNonSearch'])) $aTerms[] = "array_cat(name_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aNameNonSearch'],",")."]";
1288                                                         if (sizeof($aSearch['aAddress']) && $aSearch['aName'] != $aSearch['aAddress'])
1289                                                         {
1290                                                                 // For infrequent name terms disable index usage for address
1291                                                                 if (CONST_Search_NameOnlySearchFrequencyThreshold &&
1292                                                                                 sizeof($aSearch['aName']) == 1 &&
1293                                                                                 $aWordFrequencyScores[$aSearch['aName'][reset($aSearch['aName'])]] < CONST_Search_NameOnlySearchFrequencyThreshold)
1294                                                                 {
1295                                                                         $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join(array_merge($aSearch['aAddress'],$aSearch['aAddressNonSearch']),",")."]";
1296                                                                 }
1297                                                                 else
1298                                                                 {
1299                                                                         $aTerms[] = "nameaddress_vector @> ARRAY[".join($aSearch['aAddress'],",")."]";
1300                                                                         if (sizeof($aSearch['aAddressNonSearch'])) $aTerms[] = "array_cat(nameaddress_vector,ARRAY[]::integer[]) @> ARRAY[".join($aSearch['aAddressNonSearch'],",")."]";
1301                                                                 }
1302                                                         }
1303                                                         if ($aSearch['sCountryCode']) $aTerms[] = "country_code = '".pg_escape_string($aSearch['sCountryCode'])."'";
1304                                                         if ($aSearch['sHouseNumber'])
1305                                                         {
1306                                                                 $aTerms[] = "address_rank between 16 and 27";
1307                                                         }
1308                                                         else
1309                                                         {
1310                                                                 if ($this->iMinAddressRank > 0)
1311                                                                 {
1312                                                                         $aTerms[] = "address_rank >= ".$this->iMinAddressRank;
1313                                                                 }
1314                                                                 if ($this->iMaxAddressRank < 30)
1315                                                                 {
1316                                                                         $aTerms[] = "address_rank <= ".$this->iMaxAddressRank;
1317                                                                 }
1318                                                         }
1319                                                         if ($aSearch['fLon'] && $aSearch['fLat'])
1320                                                         {
1321                                                                 $aTerms[] = "ST_DWithin(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326), ".$aSearch['fRadius'].")";
1322                                                                 $aOrder[] = "ST_Distance(centroid, ST_SetSRID(ST_Point(".$aSearch['fLon'].",".$aSearch['fLat']."),4326)) ASC";
1323                                                         }
1324                                                         if (sizeof($this->aExcludePlaceIDs))
1325                                                         {
1326                                                                 $aTerms[] = "place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1327                                                         }
1328                                                         if ($sCountryCodesSQL)
1329                                                         {
1330                                                                 $aTerms[] = "country_code in ($sCountryCodesSQL)";
1331                                                         }
1332
1333                                                         if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
1334                                                         if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) asc";
1335
1336                                                         if ($aSearch['sHouseNumber'])
1337                                                         {
1338                                                                 $sImportanceSQL = '- abs(26 - address_rank) + 3';
1339                                                         }
1340                                                         else
1341                                                         {
1342                                                                 $sImportanceSQL = '(case when importance = 0 OR importance IS NULL then 0.75-(search_rank::float/40) else importance end)';
1343                                                         }
1344                                                         if ($this->sViewboxSmallSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxSmallSQL, centroid) THEN 1 ELSE 0.5 END";
1345                                                         if ($this->sViewboxLargeSQL) $sImportanceSQL .= " * case when ST_Contains($this->sViewboxLargeSQL, centroid) THEN 1 ELSE 0.5 END";
1346
1347                                                         $aOrder[] = "$sImportanceSQL DESC";
1348                                                         if (sizeof($aSearch['aFullNameAddress']))
1349                                                         {
1350                                                                 $sExactMatchSQL = '(select count(*) from (select unnest(ARRAY['.join($aSearch['aFullNameAddress'],",").']) INTERSECT select unnest(nameaddress_vector))s) as exactmatch';
1351                                                                 $aOrder[] = 'exactmatch DESC';
1352                                                         } else {
1353                                                                 $sExactMatchSQL = '0::int as exactmatch';
1354                                                         }
1355
1356                                                         if (sizeof($aTerms))
1357                                                         {
1358                                                                 $sSQL = "select place_id, ";
1359                                                                 $sSQL .= $sExactMatchSQL;
1360                                                                 $sSQL .= " from search_name";
1361                                                                 $sSQL .= " where ".join(' and ',$aTerms);
1362                                                                 $sSQL .= " order by ".join(', ',$aOrder);
1363                                                                 if ($aSearch['sHouseNumber'] || $aSearch['sClass'])
1364                                                                         $sSQL .= " limit 20";
1365                                                                 elseif (!sizeof($aSearch['aName']) && !sizeof($aSearch['aAddress']) && $aSearch['sClass'])
1366                                                                         $sSQL .= " limit 1";
1367                                                                 else
1368                                                                         $sSQL .= " limit ".$this->iLimit;
1369
1370                                                                 if (CONST_Debug) { var_dump($sSQL); }
1371                                                                 $aViewBoxPlaceIDs = $this->oDB->getAll($sSQL);
1372                                                                 if (PEAR::IsError($aViewBoxPlaceIDs))
1373                                                                 {
1374                                                                         failInternalError("Could not get places for search terms.", $sSQL, $aViewBoxPlaceIDs);
1375                                                                 }
1376                                                                 //var_dump($aViewBoxPlaceIDs);
1377                                                                 // Did we have an viewbox matches?
1378                                                                 $aPlaceIDs = array();
1379                                                                 $bViewBoxMatch = false;
1380                                                                 foreach($aViewBoxPlaceIDs as $aViewBoxRow)
1381                                                                 {
1382                                                                         //if ($bViewBoxMatch == 1 && $aViewBoxRow['in_small'] == 'f') break;
1383                                                                         //if ($bViewBoxMatch == 2 && $aViewBoxRow['in_large'] == 'f') break;
1384                                                                         //if ($aViewBoxRow['in_small'] == 't') $bViewBoxMatch = 1;
1385                                                                         //else if ($aViewBoxRow['in_large'] == 't') $bViewBoxMatch = 2;
1386                                                                         $aPlaceIDs[] = $aViewBoxRow['place_id'];
1387                                                                         $this->exactMatchCache[$aViewBoxRow['place_id']] = $aViewBoxRow['exactmatch'];
1388                                                                 }
1389                                                         }
1390                                                         //var_Dump($aPlaceIDs);
1391                                                         //exit;
1392
1393                                                         if ($aSearch['sHouseNumber'] && sizeof($aPlaceIDs))
1394                                                         {
1395                                                                 $aRoadPlaceIDs = $aPlaceIDs;
1396                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1397
1398                                                                 // Now they are indexed look for a house attached to a street we found
1399                                                                 $sHouseNumberRegex = '\\\\m'.$aSearch['sHouseNumber'].'\\\\M';
1400                                                                 $sSQL = "select place_id from placex where parent_place_id in (".$sPlaceIDs.") and transliteration(housenumber) ~* E'".$sHouseNumberRegex."'";
1401                                                                 if (sizeof($this->aExcludePlaceIDs))
1402                                                                 {
1403                                                                         $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1404                                                                 }
1405                                                                 $sSQL .= " limit $this->iLimit";
1406                                                                 if (CONST_Debug) var_dump($sSQL);
1407                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1408
1409                                                                 // If not try the aux fallback table
1410                                                                 if (!sizeof($aPlaceIDs))
1411                                                                 {
1412                                                                         $sSQL = "select place_id from location_property_aux where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1413                                                                         if (sizeof($this->aExcludePlaceIDs))
1414                                                                         {
1415                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1416                                                                         }
1417                                                                         //$sSQL .= " limit $this->iLimit";
1418                                                                         if (CONST_Debug) var_dump($sSQL);
1419                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1420                                                                 }
1421
1422                                                                 if (!sizeof($aPlaceIDs))
1423                                                                 {
1424                                                                         $sSQL = "select place_id from location_property_tiger where parent_place_id in (".$sPlaceIDs.") and housenumber = '".pg_escape_string($aSearch['sHouseNumber'])."'";
1425                                                                         if (sizeof($this->aExcludePlaceIDs))
1426                                                                         {
1427                                                                                 $sSQL .= " and place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1428                                                                         }
1429                                                                         //$sSQL .= " limit $this->iLimit";
1430                                                                         if (CONST_Debug) var_dump($sSQL);
1431                                                                         $aPlaceIDs = $this->oDB->getCol($sSQL);
1432                                                                 }
1433
1434                                                                 // Fallback to the road
1435                                                                 if (!sizeof($aPlaceIDs) && preg_match('/[0-9]+/', $aSearch['sHouseNumber']))
1436                                                                 {
1437                                                                         $aPlaceIDs = $aRoadPlaceIDs;
1438                                                                 }
1439
1440                                                         }
1441
1442                                                         if ($aSearch['sClass'] && sizeof($aPlaceIDs))
1443                                                         {
1444                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1445                                                                 $aClassPlaceIDs = array();
1446
1447                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'name')
1448                                                                 {
1449                                                                         // If they were searching for a named class (i.e. 'Kings Head pub') then we might have an extra match
1450                                                                         $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and class='".$aSearch['sClass']."' and type='".$aSearch['sType']."'";
1451                                                                         $sSQL .= " and linked_place_id is null";
1452                                                                         if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
1453                                                                         $sSQL .= " order by rank_search asc limit $this->iLimit";
1454                                                                         if (CONST_Debug) var_dump($sSQL);
1455                                                                         $aClassPlaceIDs = $this->oDB->getCol($sSQL);
1456                                                                 }
1457
1458                                                                 if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
1459                                                                 {
1460                                                                         $sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
1461                                                                         $bCacheTable = $this->oDB->getOne($sSQL);
1462
1463                                                                         $sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";
1464
1465                                                                         if (CONST_Debug) var_dump($sSQL);
1466                                                                         $this->iMaxRank = ((int)$this->oDB->getOne($sSQL));
1467
1468                                                                         // For state / country level searches the normal radius search doesn't work very well
1469                                                                         $sPlaceGeom = false;
1470                                                                         if ($this->iMaxRank < 9 && $bCacheTable)
1471                                                                         {
1472                                                                                 // Try and get a polygon to search in instead
1473                                                                                 $sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
1474                                                                                 if (CONST_Debug) var_dump($sSQL);
1475                                                                                 $sPlaceGeom = $this->oDB->getOne($sSQL);
1476                                                                         }
1477
1478                                                                         if ($sPlaceGeom)
1479                                                                         {
1480                                                                                 $sPlaceIDs = false;
1481                                                                         }
1482                                                                         else
1483                                                                         {
1484                                                                                 $this->iMaxRank += 5;
1485                                                                                 $sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
1486                                                                                 if (CONST_Debug) var_dump($sSQL);
1487                                                                                 $aPlaceIDs = $this->oDB->getCol($sSQL);
1488                                                                                 $sPlaceIDs = join(',',$aPlaceIDs);
1489                                                                         }
1490
1491                                                                         if ($sPlaceIDs || $sPlaceGeom)
1492                                                                         {
1493
1494                                                                                 $fRange = 0.01;
1495                                                                                 if ($bCacheTable)
1496                                                                                 {
1497                                                                                         // More efficient - can make the range bigger
1498                                                                                         $fRange = 0.05;
1499
1500                                                                                         $sOrderBySQL = '';
1501                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
1502                                                                                         else if ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
1503                                                                                         else if ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
1504
1505                                                                                         $sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
1506                                                                                         if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
1507                                                                                         if ($sPlaceIDs)
1508                                                                                         {
1509                                                                                                 $sSQL .= ",placex as f where ";
1510                                                                                                 $sSQL .= "f.place_id in ($sPlaceIDs) and ST_DWithin(l.centroid, f.centroid, $fRange) ";
1511                                                                                         }
1512                                                                                         if ($sPlaceGeom)
1513                                                                                         {
1514                                                                                                 $sSQL .= " where ";
1515                                                                                                 $sSQL .= "ST_Contains('".$sPlaceGeom."', l.centroid) ";
1516                                                                                         }
1517                                                                                         if (sizeof($this->aExcludePlaceIDs))
1518                                                                                         {
1519                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1520                                                                                         }
1521                                                                                         if ($sCountryCodesSQL) $sSQL .= " and lp.calculated_country_code in ($sCountryCodesSQL)";
1522                                                                                         if ($sOrderBySQL) $sSQL .= "order by ".$sOrderBySQL." asc";
1523                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1524                                                                                         $sSQL .= " limit $this->iLimit";
1525                                                                                         if (CONST_Debug) var_dump($sSQL);
1526                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1527                                                                                 }
1528                                                                                 else
1529                                                                                 {
1530                                                                                         if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
1531
1532                                                                                         $sOrderBySQL = '';
1533                                                                                         if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
1534                                                                                         else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
1535
1536                                                                                         $sSQL = "select distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'')." from placex as l,placex as f where ";
1537                                                                                         $sSQL .= "f.place_id in ( $sPlaceIDs) and ST_DWithin(l.geometry, f.centroid, $fRange) ";
1538                                                                                         $sSQL .= "and l.class='".$aSearch['sClass']."' and l.type='".$aSearch['sType']."' ";
1539                                                                                         if (sizeof($this->aExcludePlaceIDs))
1540                                                                                         {
1541                                                                                                 $sSQL .= " and l.place_id not in (".join(',',$this->aExcludePlaceIDs).")";
1542                                                                                         }
1543                                                                                         if ($sCountryCodesSQL) $sSQL .= " and l.calculated_country_code in ($sCountryCodesSQL)";
1544                                                                                         if ($sOrderBy) $sSQL .= "order by ".$OrderBysSQL." asc";
1545                                                                                         if ($this->iOffset) $sSQL .= " offset $this->iOffset";
1546                                                                                         $sSQL .= " limit $this->iLimit";
1547                                                                                         if (CONST_Debug) var_dump($sSQL);
1548                                                                                         $aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
1549                                                                                 }
1550                                                                         }
1551                                                                 }
1552
1553                                                                 $aPlaceIDs = $aClassPlaceIDs;
1554
1555                                                         }
1556
1557                                                 }
1558
1559                                                 if (PEAR::IsError($aPlaceIDs))
1560                                                 {
1561                                                         failInternalError("Could not get place IDs from tokens." ,$sSQL, $aPlaceIDs);
1562                                                 }
1563
1564                                                 if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }
1565
1566                                                 foreach($aPlaceIDs as $iPlaceID)
1567                                                 {
1568                                                         $aResultPlaceIDs[$iPlaceID] = $iPlaceID;
1569                                                 }
1570                                                 if ($iQueryLoop > 20) break;
1571                                         }
1572
1573                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs) && ($this->iMinAddressRank != 0 || $this->iMaxAddressRank != 30))
1574                                         {
1575                                                 // Need to verify passes rank limits before dropping out of the loop (yuk!)
1576                                                 $sSQL = "select place_id from placex where place_id in (".join(',',$aResultPlaceIDs).") ";
1577                                                 $sSQL .= "and (placex.rank_address between $this->iMinAddressRank and $this->iMaxAddressRank ";
1578                                                 if (14 >= $this->iMinAddressRank && 14 <= $this->iMaxAddressRank) $sSQL .= " OR (extratags->'place') = 'city'";
1579                                                 if ($this->aAddressRankList) $sSQL .= " OR placex.rank_address in (".join(',',$this->aAddressRankList).")";
1580                                                 $sSQL .= ") UNION select place_id from location_property_tiger where place_id in (".join(',',$aResultPlaceIDs).") ";
1581                                                 $sSQL .= "and (30 between $this->iMinAddressRank and $this->iMaxAddressRank ";
1582                                                 if ($this->aAddressRankList) $sSQL .= " OR 30 in (".join(',',$this->aAddressRankList).")";
1583                                                 $sSQL .= ")";
1584                                                 if (CONST_Debug) var_dump($sSQL);
1585                                                 $aResultPlaceIDs = $this->oDB->getCol($sSQL);
1586                                         }
1587
1588                                         //exit;
1589                                         if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs)) break;
1590                                         if ($iGroupLoop > 4) break;
1591                                         if ($iQueryLoop > 30) break;
1592                                 }
1593
1594                                 // Did we find anything?
1595                                 if (isset($aResultPlaceIDs) && sizeof($aResultPlaceIDs))
1596                                 {
1597                                         $aSearchResults = $this->getDetails($aResultPlaceIDs);
1598                                 }
1599
1600                         }
1601                         else
1602                         {
1603                                 // Just interpret as a reverse geocode
1604                                 $iPlaceID = geocodeReverse((float)$this->aNearPoint[0], (float)$this->aNearPoint[1]);
1605                                 if ($iPlaceID)
1606                                         $aSearchResults = $this->getDetails(array($iPlaceID));
1607                                 else
1608                                         $aSearchResults = array();
1609                         }
1610
1611                         // No results? Done
1612                         if (!sizeof($aSearchResults))
1613                         {
1614                                 if ($this->bFallback)
1615                                 {
1616                                         if ($this->fallbackStructuredQuery())
1617                                         {
1618                                                 return $this->lookup();
1619                                         }
1620                                 }
1621
1622                                 return array();
1623                         }
1624
1625                         $aClassType = getClassTypesWithImportance();
1626                         $aRecheckWords = preg_split('/\b[\s,\\-]*/u',$sQuery);
1627                         foreach($aRecheckWords as $i => $sWord)
1628                         {
1629                                 if (!preg_match('/\pL/', $sWord)) unset($aRecheckWords[$i]);
1630                         }
1631
1632                         if (CONST_Debug) { echo '<i>Recheck words:<\i>'; var_dump($aRecheckWords); }
1633
1634                         foreach($aSearchResults as $iResNum => $aResult)
1635                         {
1636                                 // Default
1637                                 $fDiameter = 0.0001;
1638
1639                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1640                                                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
1641                                 {
1642                                         $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'];
1643                                 }
1644                                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1645                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
1646                                 {
1647                                         $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'];
1648                                 }
1649                                 $fRadius = $fDiameter / 2;
1650
1651                                 if (CONST_Search_AreaPolygons)
1652                                 {
1653                                         // Get the bounding box and outline polygon
1654                                         $sSQL = "select place_id,0 as numfeatures,st_area(geometry) as area,";
1655                                         $sSQL .= "ST_Y(centroid) as centrelat,ST_X(centroid) as centrelon,";
1656                                         $sSQL .= "ST_YMin(geometry) as minlat,ST_YMax(geometry) as maxlat,";
1657                                         $sSQL .= "ST_XMin(geometry) as minlon,ST_XMax(geometry) as maxlon";
1658                                         if ($this->bIncludePolygonAsGeoJSON) $sSQL .= ",ST_AsGeoJSON(geometry) as asgeojson";
1659                                         if ($this->bIncludePolygonAsKML) $sSQL .= ",ST_AsKML(geometry) as askml";
1660                                         if ($this->bIncludePolygonAsSVG) $sSQL .= ",ST_AsSVG(geometry) as assvg";
1661                                         if ($this->bIncludePolygonAsText || $this->bIncludePolygonAsPoints) $sSQL .= ",ST_AsText(geometry) as astext";
1662                                         $sFrom = " from placex where place_id = ".$aResult['place_id'];
1663                                         if ($this->fPolygonSimplificationThreshold > 0)
1664                                         {
1665                                                 $sSQL .= " from (select place_id,centroid,ST_SimplifyPreserveTopology(geometry,".$this->fPolygonSimplificationThreshold.") as geometry".$sFrom.") as plx";
1666                                         }
1667                                         else
1668                                         {
1669                                                 $sSQL .= $sFrom;
1670                                         }
1671
1672                                         $aPointPolygon = $this->oDB->getRow($sSQL);
1673                                         if (PEAR::IsError($aPointPolygon))
1674                                         {
1675                                                 failInternalError("Could not get outline.", $sSQL, $aPointPolygon);
1676                                         }
1677
1678                                         if ($aPointPolygon['place_id'])
1679                                         {
1680                                                 if ($this->bIncludePolygonAsGeoJSON) $aResult['asgeojson'] = $aPointPolygon['asgeojson'];
1681                                                 if ($this->bIncludePolygonAsKML) $aResult['askml'] = $aPointPolygon['askml'];
1682                                                 if ($this->bIncludePolygonAsSVG) $aResult['assvg'] = $aPointPolygon['assvg'];
1683                                                 if ($this->bIncludePolygonAsText) $aResult['astext'] = $aPointPolygon['astext'];
1684
1685                                                 if ($aPointPolygon['centrelon'] !== null && $aPointPolygon['centrelat'] !== null )
1686                                                 {
1687                                                         $aResult['lat'] = $aPointPolygon['centrelat'];
1688                                                         $aResult['lon'] = $aPointPolygon['centrelon'];
1689                                                 }
1690
1691                                                 if ($this->bIncludePolygonAsPoints)
1692                                                 {
1693                                                         $aPolyPoints[] = geometryText2Points($aPointPolygon['astext'],$fRadius);
1694
1695                                                         // Output data suitable for display (points and a bounding box)
1696                                                         if (isset($aPolyPoints))
1697                                                         {
1698                                                                 $aResult['aPolyPoints'] = array();
1699                                                                 foreach($aPolyPoints as $aPoint)
1700                                                                 {
1701                                                                         $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1702                                                                 }
1703                                                         }
1704                                                 }
1705
1706                                                 if (abs($aPointPolygon['minlat'] - $aPointPolygon['maxlat']) < 0.0000001)
1707                                                 {
1708                                                         $aPointPolygon['minlat'] = $aPointPolygon['minlat'] - $fRadius;
1709                                                         $aPointPolygon['maxlat'] = $aPointPolygon['maxlat'] + $fRadius;
1710                                                 }
1711                                                 if (abs($aPointPolygon['minlon'] - $aPointPolygon['maxlon']) < 0.0000001)
1712                                                 {
1713                                                         $aPointPolygon['minlon'] = $aPointPolygon['minlon'] - $fRadius;
1714                                                         $aPointPolygon['maxlon'] = $aPointPolygon['maxlon'] + $fRadius;
1715                                                 }
1716                                                 $aResult['aBoundingBox'] = array((string)$aPointPolygon['minlat'],(string)$aPointPolygon['maxlat'],(string)$aPointPolygon['minlon'],(string)$aPointPolygon['maxlon']);
1717                                         }
1718                                 }
1719
1720                                 if ($aResult['extra_place'] == 'city')
1721                                 {
1722                                         $aResult['class'] = 'place';
1723                                         $aResult['type'] = 'city';
1724                                         $aResult['rank_search'] = 16;
1725                                 }
1726
1727                                 if (!isset($aResult['aBoundingBox']))
1728                                 {
1729                                         $iSteps = max(8,min(100,$fRadius * 3.14 * 100000));
1730                                         $fStepSize = (2*pi())/$iSteps;
1731                                         $aPointPolygon['minlat'] = $aResult['lat'] - $fRadius;
1732                                         $aPointPolygon['maxlat'] = $aResult['lat'] + $fRadius;
1733                                         $aPointPolygon['minlon'] = $aResult['lon'] - $fRadius;
1734                                         $aPointPolygon['maxlon'] = $aResult['lon'] + $fRadius;
1735
1736                                         // Output data suitable for display (points and a bounding box)
1737                                         if ($this->bIncludePolygonAsPoints)
1738                                         {
1739                                                 $aPolyPoints = array();
1740                                                 for($f = 0; $f < 2*pi(); $f += $fStepSize)
1741                                                 {
1742                                                         $aPolyPoints[] = array('',$aResult['lon']+($fRadius*sin($f)),$aResult['lat']+($fRadius*cos($f)));
1743                                                 }
1744                                                 $aResult['aPolyPoints'] = array();
1745                                                 foreach($aPolyPoints as $aPoint)
1746                                                 {
1747                                                         $aResult['aPolyPoints'][] = array($aPoint[1], $aPoint[2]);
1748                                                 }
1749                                         }
1750                                         $aResult['aBoundingBox'] = array((string)$aPointPolygon['minlat'],(string)$aPointPolygon['maxlat'],(string)$aPointPolygon['minlon'],(string)$aPointPolygon['maxlon']);
1751                                 }
1752
1753                                 // Is there an icon set for this type of result?
1754                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1755                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['icon'])
1756                                 {
1757                                         $aResult['icon'] = CONST_Website_BaseURL.'images/mapicons/'.$aClassType[$aResult['class'].':'.$aResult['type']]['icon'].'.p.20.png';
1758                                 }
1759
1760                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1761                                                 && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'])
1762                                 {
1763                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['label'];
1764                                 }
1765                                 elseif (isset($aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1766                                                 && $aClassType[$aResult['class'].':'.$aResult['type']]['label'])
1767                                 {
1768                                         $aResult['label'] = $aClassType[$aResult['class'].':'.$aResult['type']]['label'];
1769                                 }
1770
1771                                 if ($this->bIncludeAddressDetails)
1772                                 {
1773                                         $aResult['address'] = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $aResult['place_id'], $aResult['country_code']);
1774                                         if ($aResult['extra_place'] == 'city' && !isset($aResult['address']['city']))
1775                                         {
1776                                                 $aResult['address'] = array_merge(array('city' => array_shift(array_values($aResult['address']))), $aResult['address']);
1777                                         }
1778                                 }
1779
1780                                 if ($this->bIncludeExtraTags)
1781                                 {
1782                                         if ($aResult['extra'])
1783                                         {
1784                                                 $aResult['sExtraTags'] = json_decode($aResult['extra']);
1785                                         }
1786                                         else
1787                                         {
1788                                                 $aResult['sExtraTags'] = (object) array();
1789                                         }
1790                                 }
1791
1792                                 if ($this->bIncludeNameDetails)
1793                                 {
1794                                         if ($aResult['names'])
1795                                         {
1796                                                 $aResult['sNameDetails'] = json_decode($aResult['names']);
1797                                         }
1798                                         else
1799                                         {
1800                                                 $aResult['sNameDetails'] = (object) array();
1801                                         }
1802                                 }
1803
1804                                 // Adjust importance for the number of exact string matches in the result
1805                                 $aResult['importance'] = max(0.001,$aResult['importance']);
1806                                 $iCountWords = 0;
1807                                 $sAddress = $aResult['langaddress'];
1808                                 foreach($aRecheckWords as $i => $sWord)
1809                                 {
1810                                         if (stripos($sAddress, $sWord)!==false)
1811                                         {
1812                                                 $iCountWords++;
1813                                                 if (preg_match("/(^|,)\s*".preg_quote($sWord, '/')."\s*(,|$)/", $sAddress)) $iCountWords += 0.1;
1814                                         }
1815                                 }
1816
1817                                 $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
1818
1819                                 $aResult['name'] = $aResult['langaddress'];
1820                                 // secondary ordering (for results with same importance (the smaller the better):
1821                                 //   - approximate importance of address parts
1822                                 $aResult['foundorder'] = -$aResult['addressimportance']/10;
1823                                 //   - number of exact matches from the query
1824                                 if (isset($this->exactMatchCache[$aResult['place_id']]))
1825                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['place_id']];
1826                                 else if (isset($this->exactMatchCache[$aResult['parent_place_id']]))
1827                                         $aResult['foundorder'] -= $this->exactMatchCache[$aResult['parent_place_id']];
1828                                 //  - importance of the class/type
1829                                 if (isset($aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1830                                         && $aClassType[$aResult['class'].':'.$aResult['type']]['importance'])
1831                                 {
1832                                         $aResult['foundorder'] += 0.0001 * $aClassType[$aResult['class'].':'.$aResult['type']]['importance'];
1833                                 }
1834                                 else
1835                                 {
1836                                         $aResult['foundorder'] += 0.01;
1837                                 }
1838                                 if (CONST_Debug) { var_dump($aResult); }
1839                                 $aSearchResults[$iResNum] = $aResult;
1840                         }
1841                         uasort($aSearchResults, 'byImportance');
1842
1843                         $aOSMIDDone = array();
1844                         $aClassTypeNameDone = array();
1845                         $aToFilter = $aSearchResults;
1846                         $aSearchResults = array();
1847
1848                         $bFirst = true;
1849                         foreach($aToFilter as $iResNum => $aResult)
1850                         {
1851                                 $this->aExcludePlaceIDs[$aResult['place_id']] = $aResult['place_id'];
1852                                 if ($bFirst)
1853                                 {
1854                                         $fLat = $aResult['lat'];
1855                                         $fLon = $aResult['lon'];
1856                                         if (isset($aResult['zoom'])) $iZoom = $aResult['zoom'];
1857                                         $bFirst = false;
1858                                 }
1859                                 if (!$this->bDeDupe || (!isset($aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']])
1860                                                         && !isset($aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']])))
1861                                 {
1862                                         $aOSMIDDone[$aResult['osm_type'].$aResult['osm_id']] = true;
1863                                         $aClassTypeNameDone[$aResult['osm_type'].$aResult['class'].$aResult['type'].$aResult['name'].$aResult['admin_level']] = true;
1864                                         $aSearchResults[] = $aResult;
1865                                 }
1866
1867                                 // Absolute limit on number of results
1868                                 if (sizeof($aSearchResults) >= $this->iFinalLimit) break;
1869                         }
1870
1871                         return $aSearchResults;
1872
1873                 } // end lookup()
1874
1875
1876         } // end class
1877