3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define('true',false,true);
Output for 4.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Constant true already defined in /in/OuNqL on line 2
Output for hhvm-3.10.0 - 3.12.0
Warning: Case insensitive constant names are not supported in HipHop in /in/OuNqL on line 2 Notice: Constant true already defined in /in/OuNqL on line 2