3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(1,2,2,1,1); $b = array("1"=>1,"2"=>1); foreach (array_unique($a) as $key => $value) { echo "$key => $value\n"; }
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
0 => 1 1 => 2
Output for hhvm-3.10.0

Process exited with code 153.