3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array1[0] = "zero"; $array1[1] = "one"; $array2[1] = "one"; $array2[2] = "two"; $array2[3] = "three"; print_r(array_merge($array1 + $array2));
based on JtGAF
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => zero [1] => one [2] => two [3] => three )