3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr1 = array (0 => array (1 => array ( 2 => 3))); echo $arr1[0];
based on NkFKu
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
Notice: Array to string conversion in /in/M4E9Z on line 3 Array