3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a1 = array(1=>1, 2=>2, 3=>3, 4=>4, 5=>5, 6=>6, 7=>7); //currently exist $a2 = array(2=>2, 4=>4, 6=>6, 8=>8); //refrenced elsewhere $a3 = array_diff($a2, $a1); var_dump($a3);
Output for 4.3.0 - 7.2.0
array(1) { [8]=> int(8) }