3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo kok;
Output for 7.2.0 - 7.3.0rc4
Warning: Use of undefined constant kok - assumed 'kok' (this will throw an Error in a future version of PHP) in /in/7u6hf on line 2 kok
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant kok - assumed 'kok' in /in/7u6hf on line 2 kok