3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php HELLO ?>
Output for 7.0.0 - 7.1.0
Notice: Use of undefined constant HELLO - assumed 'HELLO' in /in/RuCmj on line 2
Output for 4.3.0, 5.3.28 - 5.3.29, 5.4.20 - 5.6.28
Notice: Use of undefined constant HELLO - assumed 'HELLO' in /in/RuCmj on line 4
Output for 4.3.1 - 5.3.27, 5.4.0 - 5.4.19
Notice: Use of undefined constant HELLO - assumed 'HELLO' in /in/LUcoe on line 4