3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function cmp($a, $b) { return strcmp($a, $b); } $result = array(3, 2, 5, 6, 1); usort($result, "cmp"); echo '<pre>'; print_r($result); echo '</pre>';
based on tPBYD
Output for 4.3.0 - 7.1.0
<pre>Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 [4] => 6 ) </pre>