3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php define('true',false,true);
Output for 7.3.0 - 7.3.1
Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/OuNqL on line 2 Notice: Constant true already defined in /in/OuNqL on line 2
Output for 4.3.0 - 7.2.13
Notice: Constant true already defined in /in/OuNqL on line 2