3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php //define("true",0); // notice: constant true already defined in... define("TRUE",false); echo true; echo TRUE;
Output for 5.1.3 - 5.6.28, 7.0.0 - 7.1.0
11
Output for hhvm-3.10.0 - 3.12.0
Notice: Constant TRUE already defined in /in/gfFar on line 3 11
Output for 4.3.0 - 5.1.2
1