3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php define('A2', 1); function a($x=A) { } a();
Output for 7.2.0 - 7.3.0rc4
Warning: Use of undefined constant A - assumed 'A' (this will throw an Error in a future version of PHP) in /in/Kklel on line 4
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant A - assumed 'A' in /in/Kklel on line 4