3v4l.org

run code in 300+ PHP versions simultaneously
<?php function decrypt($a) { $tmp = strtolower(strrev($a)); $tmps = (substr($tmp, 0,4) ^ hexdec('BFF')) ^ hexdec('D77D'); $tmpss = substr($tmp,4); unset($unset_tmp); } define('__FLAG__', 'flag{hidden_flag}'); if(decrypt($_REQUEST['pass']) == 'pwning_the_phpreverse!') { __FLAG__; } ?>

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50.09 ms | 402 KiB | 5 Q