3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(array_merge_recursive(array("text-decoration" => array("underline")), array("text-decoration" => array("overline"))));
Output for 4.3.0 - 7.1.0
array(1) { ["text-decoration"]=> array(2) { [0]=> string(9) "underline" [1]=> string(8) "overline" } }