3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php foreach (array('1' => '1') as $k => $v) { if ($k === $v) { echo (null < -1 ? 'php' : null) . "\n"; } }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0