3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $var = UndefinedContants; echo "Undefined contant's value is literal: ", $var;
based on FvccP
Output for 7.2.0
Warning: Use of undefined constant UndefinedContants - assumed 'UndefinedContants' (this will throw an Error in a future version of PHP) in /in/RVSSQ on line 3 Undefined contant's value is literal: UndefinedContants
Output for 4.3.0 - 7.1.10
Notice: Use of undefined constant UndefinedContants - assumed 'UndefinedContants' in /in/RVSSQ on line 3 Undefined contant's value is literal: UndefinedContants