3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = [ 'foob' => 'bar', 'baz' => null, ]; if (isset($array['baz'])) { echo "Wat."; }
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6