Online PHP editor | refs for HPZBc

<?php function xssfilter($inp){ $inp = html_entity_decode(urldecode($inp)); $inp = preg_replace('/!/','',$inp); if (preg_match('/script|on|xmlns|data/iu',$inp)){ while(preg_match('/script|on|xmlns|data/iu',$inp)){ $inp = preg_replace('/(script)|(on)|(xmlns)|(data)/iu','NO!',$inp); } } return $inp; } echo xssfilter("&#x6A;&#x61;&#x76;&#x61;&#x73;&#x63;&#x72;&#x69;&#x70;&#x74;: alert('XSS');");