3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $data = []; echo isset($data['guest']['test']) ? 'true' : 'false';
based on 8h1RJ
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
false