3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array( 'height' => 20, 'length' => 10 ); if (!empty($arr['width'])) { echo $arr['width']; } else { echo 'coming'; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
coming