hup 403

function tisztogat($input){$bkeys = array ("alert", "script", "applet", "iframe", "form", "input", "select", "drop", "delete", "update", "union", "benchmark", "object", "applet", "onmouseover", "onmouseout");    if(is_array($input)){        foreach($input as $k=>$i){            $output[$k]=tisztogat($i);        }    }    else{	$tt .= $input .  ", ";        foreach($bkeys as $bi){            if(stristr($input, $bi) == TRUE) {	    header('Location:index.php');	    die();            }        }    }   }tisztogat($_POST);tisztogat($_GET);tisztogat($_REQUEST);