3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $🐶🐮 = "dogcow"; echo 🐶🐮;
Output for 7.2.0 - 7.3.0rc6
Warning: Use of undefined constant 🐶🐮 - assumed '🐶🐮' (this will throw an Error in a future version of PHP) in /in/aApkf on line 3 🐶🐮
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant 🐶🐮 - assumed '🐶🐮' in /in/aApkf on line 3 🐶🐮