3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $filter = "cmt test test test"; if (substr($filter, 0,3) == 'cmt') { echo hi; }
Output for 4.3.0 - 7.1.0
Notice: Use of undefined constant hi - assumed 'hi' in /in/A3m0Q on line 3 hi