Hi Rynho, > if(!isset($cid) || $cid == NULL || $cid == "" || !is_numeric ($cid)) > { > echo "I don't like you >:|"; > exit(); > } you know that $cid == NULL equals $cid == ""? (int)0, too btw. either check $cid == '' (what is 0 & NULL, too) or $cid === NULL || $cid === '', or empty($cid) Mit freundlichen Gruessen / Kind regards -- Benjamin Schulz There are 10 types of people: those who understand binary and those who don't.