3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $userId = '12'; echo preg_match('/\A[a-zA-Z0-9]+\z/', $userId) ? 'true' : 'false';
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
true
Output for hhvm-3.10.0

Process exited with code 153.