3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { } echo A;
Output for 7.2.6 - 7.3.0rc3
Warning: Use of undefined constant A - assumed 'A' (this will throw an Error in a future version of PHP) in /in/fZBVQ on line 7 A
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.21.3, 7.0.0 - 7.1.20
Notice: Use of undefined constant A - assumed 'A' in /in/fZBVQ on line 7 A
Output for hhvm-3.22.0
Notice: Use of undefined constant A - assumed 'A' in /in/fZBVQ on line -1 A