3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(1); $b = array(3); $c = $a + $b; print_r($c);
based on uNUDC
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 1 )