3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php if (DEBUG) { echo 'retek'; }
based on spjQk
Output for 7.2.6 - 7.3.0beta1
Warning: Use of undefined constant DEBUG - assumed 'DEBUG' (this will throw an Error in a future version of PHP) in /in/cvfdM on line 3 retek
Output for 5.6.0 - 7.1.20
Notice: Use of undefined constant DEBUG - assumed 'DEBUG' in /in/cvfdM on line 3 retek