- ob_get_clean: documentation ( source)
- phpcredits: documentation ( source)
- ob_start: documentation ( source)
- str_split: documentation ( source)
- ord: documentation ( source)
<?php
ob_start();phpcredits();$c=0;$o=ob_get_clean();foreach (str_split($o) as $x) {echo ord($x^$c);$c=$x;}