3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(); $arr[] = array(1 => array(2 => 2, 3 => array(4 => 4, 5 => 5)), 6 => 6); function showArray(&$arr) { echo('<pre>'.print_r($arr,true).'</pre>'); }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0