3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $num = 1; define("ONE",$num); var_dump(ONE, ONEFUN);
based on thmsd
Output for 7.2.0 - 7.2.6
Warning: Use of undefined constant ONEFUN - assumed 'ONEFUN' (this will throw an Error in a future version of PHP) in /in/SMEJY on line 5 int(1) string(6) "ONEFUN"
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant ONEFUN - assumed 'ONEFUN' in /in/SMEJY on line 5 int(1) string(6) "ONEFUN"