3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print_r( array("a" => "b") + array ("a" => "a") );
based on dgsh8
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
Array ( [a] => b )