3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('a', 'a', 'b'); $b = array('a', 'b', 'b'); if (sizeof($a)==sizeof($b) AND array_diff($a,$b)==array()) { echo 'ola'; } ?>
Output for 4.3.0 - 7.1.0
ola