<?php header ("X-XSS-Protection: 0"); // Is there any input? if( array_key_exists( "name", $_GET ) && $_GET[ 'name' ] != NULL ) { // Get input $name = preg_replace( '/<(.*)s(.*)c(.*)r(.*)i(.*)p(.*)t/i', '', $_GET[ 'name' ] ); // Feedback for end user $html .= "<pre>Hello ${name}</pre>"; } ?>