3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(1 => 'foo', 5 => 'bar'); var_dump($arr[0]);
Output for 5.3.0 - 7.1.0
Notice: Undefined offset: 0 in /in/6oYcR on line 5 NULL
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 0 in /in/6oYcR on line 5 NULL