3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $data = array('0' => 'A_VALUE'); foreach ($data as $key => $value) { if ($key === 0) { print_r($key); print_r('key matches'); } }
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
0key matches
Output for hhvm-3.10.0

Process exited with code 153.