Question on queryByAttributes - multiple fields

[Eduin Carrillo]

This is my code snipped for Php/MapScript. I sent it previously, but cant find
it:

Make queries as  index.php?QATTLAYER=mylayer&QATTFIELD=myfield&QATTSTRING=value

It works for this queries like "myfield=value"
QATTFIELD=myfield
QATTSTRING=value

But can't figure how make it work for queries like "myfield=value AND
otherfield=othervalue"

Note that queries are saved for future use and a cookie is set to show the same
queried shapes in the next screen.


  $mapPrefix = "mymap_"

  //===================
  //QUERY BY ATTRIBUTES
  //===================
  if (strlen($_REQUEST['QATTLAYER']) > 0 and
      strlen($_REQUEST['QATTFIELD']) > 0 and
      strlen($_REQUEST['QATTSTRING']) > 0) {

    mt_srand((double)microtime()*1000000);
    $qfn = mt_rand() . ".gix";

    //Query in all map extension
    $mapMinXTmp = floatval($oMap->extent->minx);
    $mapMinYTmp = floatval($oMap->extent->miny);
    $mapMaxXTmp = floatval($oMap->extent->maxx);
    $mapMaxYTmp = floatval($oMap->extent->maxy);

    $oMap->setextent($mapMinX0, $mapMinY0, $mapMaxX0, $mapMaxY0);
    $qLayer = $oMap->getLayerByName(stripslashes($_REQUEST['QATTLAYER']));

    //Do query, prevent showing errors
    $qresult =
@$qLayer->queryByAttributes(stripslashes($_REQUEST['QATTFIELD']),
                            stripslashes($_REQUEST['QATTSTRING']),
                             MS_MULTIPLE);

    //Restore previous extent
    $oMap->setextent($mapMinXTmp, $mapMinYTmp, $mapMaxXTmp, $mapMaxYTmp);

    //Save query for future use
    if ($qresult == MS_SUCCESS) {

      $successQuery = TRUE;
      @$oMap->savequery(strval($oMap->web->imagepath) . $qfn);
      setcookie($mapPrefix . "_QFILE", $qfn);

    } else {
      setcookie($mapPrefix . "_QFILE", '');

    }
  }

=====
Eduin Yesid Carrillo Vega
yecarrillo at yahoo.com
COLOMBIA

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