3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array("a" => "apple", "orange", "peach", "orange"); $b = array("b" => "apple", "banana", "orange"); $r = array_diff($a, $b); echo $r[2];
based on olYmU
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 2 in /in/RIdHX on line 6
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: 2 in /in/RIdHX on line 6
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 2 in /in/RIdHX on line 6