3v4l.org

run code in 300+ PHP versions simultaneously
<?php function decrypt($a) { $tmp = strtolower(strrev($a)); $tmps = hexdec(substr($tmp, 4)) ^ hexdec('BFF') ^ hexdec('D77D'); } echo decrypt("tarunkant"); define('__FLAG__', 'flag{hidden_flag}'); if(decrypt($_REQUEST['pass']) == 'pwning_the_phpreverse!') { __FLAG__; } ?>

preferences:
39.28 ms | 402 KiB | 5 Q