3v4l.org

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