3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php Define("TRUE", false, true); If (TRUE) echo "hi";
based on 55cPc
Output for 4.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Constant true already defined in /in/9HlSg on line 2 hi
Output for hhvm-3.10.0 - 3.12.0
Warning: Case insensitive constant names are not supported in HipHop in /in/9HlSg on line 2 Notice: Constant TRUE already defined in /in/9HlSg on line 2 hi