run code in 150+ php & hhvm versions
Bugs & Features
<?php define("PHP", "Welcome to programming", true); echo php; ?>
based on QN6QW
Output for 4.3.0 - 5.6.21, 7.0.0 - 7.1.0RC4
Welcome to programming
Output for hhvm-3.12.0
Warning: Case insensitive constant names are not supported in HipHop in /in/ClFeY on line 2 Notice: Use of undefined constant php - assumed 'php' in /in/ClFeY on line 3 php
Output for hhvm-3.10.0

Process exited with code 153.