3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $m = 'umer'; echo "hello".m;
Output for 7.2.0 - 7.2.6
Warning: Use of undefined constant m - assumed 'm' (this will throw an Error in a future version of PHP) in /in/veVVt on line 3 hellom
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant m - assumed 'm' in /in/veVVt on line 3 hellom