3v4l.org

run code in 300+ PHP versions simultaneously
<?php $password = 19721972; $password = substr(md5($password), 0, 16); $password = base64_encode($password); echo $password . " | " . strlen("Y2ZjMmMwZTBlY2Y3ZDg1Zg=="); ?>

preferences:
36.54 ms | 402 KiB | 5 Q