3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "Calculates the MD5 hash of str using the ยป RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash."; for ($i = 0; $i < 1000000; $i++) { $thing = md5($string); }

preferences:
55.68 ms | 402 KiB | 5 Q