Mine

if( ($_POST['searchSubmit']) and ($_POST['destination_id'] or $_POST['region_id'] or $_POST['beds'] or $_POST['go2villa']) ){
	$redirect = "http://thaivillagetaways.com/search/?";
		
	$search = array("destination" => $_POST['destination_id'], "region" => $_POST['region_id'], "beds" => $_POST['beds'], "villa" => $_POST['go2villa']);
		
	foreach($search as $k => $v){
		if($v){
			if(!$count){
				$redirect .= $k.'='.$v;
				$count=1;
			} else $redirect .= '&'.$k.'='.$v;
		}
	}

	header("location: $redirect");
}