- var_dump: documentation ( source)
- filter_var: documentation ( source)
- urldecode: documentation ( source)
<?php
$string = '%22%3E%27%3E%3CIfRaME%3E';
$string = urldecode($string);
$string = filter_var($string, FILTER_SANITIZE_STRING);
echo($string);
var_dump($string);
?>