3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $test = ''; if (!test) echo "hej";
Output for 7.2.0 - 7.3.0rc4
Warning: Use of undefined constant test - assumed 'test' (this will throw an Error in a future version of PHP) in /in/RL4Df on line 5
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant test - assumed 'test' in /in/RL4Df on line 5