Simple PHP code for searching

From Ka-Map Wiki

this was contribted by Pēteris Brūns:

Here is simple serch code for ka-map!

   <?
   include_once( '../include/config.php' );
   if (!extension_loaded('MapScript'))
   {
       dl( $szPHPMapScriptModule );
   }
   $results = array();
   $oMap = ms_newMapObj($szMapFile); 
   //$map=$oMap; //jus for test
   $aLayers = $oMap->getAllLayerNames(); //get all layers in map file
   $tot = $oMap->numlayers; // total layers-count
   //------------------------------------------------------------------------------ 
   foreach($aLayers AS $layer) {
       $oLayer = $oMap->getLayerByName($layer);
       /* detect if group should be searchable  In yor mapfile sercahable layer will be detected just like "queryable" "true" but her use "searchfield" "field_name"*/ 
       $szSearchfield = $oLayer->getMetaData('searchfield');
       if ($oLayer->getMetaData( "searchfield" ) != "") {
           $szSearchfield = $szSearchfield;
           //---------------------------------------------------- 
           //postgis connect (NOT TESTED IF is possible to test it culd be nice to know works it or not)
           if($oLayer->connectiontype == MS_POSTGIS){
               $searchstring = $szSearchfield . ' ~* \ . $searchstring .'\'  '; 
               } else {  // Shapefile
               $numclasses = $oLayer->numclasses;
               for($i = 1 ; $i < $numclasses; $i++){
               }
               // Second HACK: it work 
               if($numclasses > 1){
                   $class = $oLayer->getClass(0);
                   // Match all
                   $class->setExpression('/.*/');
               }
           } 
           #----------------------------------------------------------------------------------------------
           if(@$oLayer->queryByAttributes($szSearchfield, $searchstring, MS_MULTIPLE) == MS_SUCCESS ){ //MS_SUCCESS 
               $oLayer->open();
               // Add element to results array for each result row
               for ($j=0; $j < $oLayer->getNumResults(); $j++)
               {
                   // get next shape row 
                   $result = $oLayer->getResult($j);
                   $shape  = $oLayer->getShape($result->tileindex, $result->shapeindex);
                   //var_dump($shape);
                   // push the row array onto the results array 
                   $aTmp = $shape->values;
                   //Calculate centroid
                   $x_c = ($shape->bounds->minx + $shape->bounds->maxx) / 2; //get x average value
                   $y_c = ($shape->bounds->miny + $shape->bounds->maxy) / 2; //get y average value 
                   //$aTmp = array_merge( $aTmp ,  array('x' => $x,'y' => $y, 'id' => $result->shapeindex));
                   $xmin = $shape->bounds->minx;
                   $xmax = $shape->bounds->maxx; 
                   $ymin = $shape->bounds->miny;
                   $ymax = $shape->bounds->maxy;
                   $aTmp = array_merge( $aTmp ,  array('xmin' => $xmin,'xmax' => $xmin,'ymin' => $ymin,'ymax' => $ymax,'x_c'=>$x_c,'y_c'=>$y_c, 'id' => $result->shapeindex)); 
                   $results[$layername][] =  $aTmp;
                   // end for loop
               }
               //echo implode
               printer($results,$szSearchfield,$layer); //printing
           } 
           else{
               print('No results returned!
 Searched string:' . "\n" . $searchstring);
           }
           $oLayer->close();
           //---------------------------------------------------- 
           $results=flush($results);
       }
       else{
           $szSearchfield = "Not defined searchfield";
       }
   }       
   function search($szSearchfield,$searchstring){ 
       //----------------------------------------------------
   }
   //-------------------------------------create print -----------------------------
   function printer($results,$szSearchfield,$layer){
       foreach($results as $key_val => $value) {
           echo "
Returned results for layer:".$layer."
"; // top for each layer
           foreach($value as $key_val => $v) { 
               $m = iconv("latin1", "UTF-8", $v[strtoupper($szSearchfield)]);
               $field=$v[strtoupper($szSearchfield)];
               //In $m place you can use $v[strtoupper($szSearchfield)] this is used for iconv etc.. 
               print "<a href=# onClick=\"myKaMap.zoomToExtents(".$v["xmin"].",".$v["ymin"].",".$v["xmax"].",".$v["ymax"].")\" onMouseOver=\" toolTip.moveGeo(".$v["x_c"].",".$v["y_c"]."), toolTip.setText('".$m."')\" onMouseOut=\"toolTip.move()\">".$m."</a>
\n"; 
           }
       }
   }
   ?>