3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = BAR; var_dump($foo);
Output for 7.2.0
Warning: Use of undefined constant BAR - assumed 'BAR' (this will throw an Error in a future version of PHP) in /in/PWVC3 on line 3 string(3) "BAR"
Output for 4.3.0 - 7.1.10
Notice: Use of undefined constant BAR - assumed 'BAR' in /in/PWVC3 on line 3 string(3) "BAR"