3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $config = array(); $ex = !empty($config['e']); if ($ex) { echo 'ex'; }
based on HF4oM
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0