3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 0; if ('UNLOCK' == $a) { echo 'U'; } else { echo 'D'; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
U