3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(1,2) + array(3,4); print_r($a); echo __DIR__;
based on dOgWp
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 1 [1] => 2 ) /in
Output for 4.3.0 - 5.2.17
Array ( [0] => 1 [1] => 2 ) Notice: Use of undefined constant __DIR__ - assumed '__DIR__' in /in/6XMQQ on line 5 __DIR__