3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php ini_set('display_errors', '1'); base64_encode(hex2bin(md5(uniqid("", true))));
based on I4hGJ
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0