3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array ( '_id' => 1, 'month' => '052014', 'studId' => 'STU140528155358', 1 => 'p', 2 => null, 3 => null,4 => null,12 => 'a' ); var_dump($array[3]);
Output for 4.3.0 - 7.2.0
NULL