3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A {} echo intval(is_a('A', A, true));
based on vtsPF
Output for 7.2.0 - 7.2.6
Warning: Use of undefined constant A - assumed 'A' (this will throw an Error in a future version of PHP) in /in/Vid3c on line 4 1
Output for 5.3.20 - 7.1.20
Notice: Use of undefined constant A - assumed 'A' in /in/Vid3c on line 4 1