3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str='a-1'; print_r(explode('-', $str) + array_fill(0, 3, NULL));
based on NtD7V
Output for 4.3.0 - 7.2.0
Array ( [0] => a [1] => 1 [2] => )