3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $d = array('test' => true, 'test2' => false); $h = array('derp' => false, 'test' => 50); var_dump($h + $d);
based on JPDIV
Output for 4.3.0 - 7.2.0
array(3) { ["derp"]=> bool(false) ["test"]=> int(50) ["test2"]=> bool(false) }