Google Geocoding, send Query - get defined Information

function geoCode($QUERY,$GOOGLEKEY="ABQIAAAAmYQAbPSpbkj2fDNP_JB0UBT2yXp_ZAY8_ufC3CFXhHIE1NvwkxQQxl2km_LSoDtKnqMEqRRfxbaqjQ") {    
   $RETURN = array();
   $page = file_get_contents("http://maps.google.com/maps/geo?q=".urlencode($QUERY)."&key=".$GOOGLEKEY."&output=xml");    
   $xml = new SimpleXMLElement($page);           
 
    list($longitude, $latitude, $altitude) = explode(",", 
     $xml->Response->Placemark->Point->coordinates);
 
   $RETURN["LandCode"] = (string) $xml->Response->Placemark->AddressDetails->Country->CountryNameCode;
   $RETURN["LandName"] = (string) $xml->Response->Placemark->AddressDetails->Country->CountryName;
   $RETURN["AdArea"] = (string) $xml->Response->Placemark->AddressDetails->Country->AdministrativeArea->AdministrativeAreaName;
   $RETURN["SubAdArea"] = (string) $xml->Response->Placemark[0]->AddressDetails->Country->AdministrativeArea->SubAdministrativeArea->SubAdministrativeAreaName;
   $RETURN["DependentArea"] = (string) $xml->Response->Placemark[0]->AddressDetails->Country->AdministrativeArea->SubAdministrativeArea->Locality->DependentLocality->DependentLocalityName;
   $RETURN["Locality"] = (string) $xml->Response->Placemark->AddressDetails->Country->AdministrativeArea->SubAdministrativeArea->Locality->LocalityName;
 
   $RETURN["PostCode"] = (int) $xml->Response->Placemark->AddressDetails->Country->AdministrativeArea->SubAdministrativeArea->Locality->PostalCode->PostalCodeNumber;
 
   if (!$RETURN["PostCode"])    
    $PLZ = (int) $xml->Response->Placemark[0]->AddressDetails->Country->AdministrativeArea->SubAdministrativeArea->Locality->DependentLocality->PostalCode->PostalCodeNumber; 
 
 
   $RETURN["LAT"] = $latitude;
   $RETURN["LON"] = $longitude;
 
   return $RETURN;      
}