3v4l.org

run code in 300+ PHP versions simultaneously
<?php function e($d) { return $d; } error_reporting(0); $flag = "D0800A94ABF879CE6785B177A09B94D913F18862B8A310D80E52306018FA3D8D63B93BFF1CAFDB7789F3"; if (e($_REQUEST["flag"]) == e($flag)) { echo "OK"; } else{ echo "Wrong! Encrypted Flag: ", $flag; }

preferences:
54.37 ms | 402 KiB | 5 Q