3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $res = null; if (!empty($res)) { echo 1; } else { echo 2; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2