3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a1 = array(1,2,3,4); $a1 = $a1 + array(5,6,7); var_dump($a1);
based on ljRvl
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) }