3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define('\\true', \false); define('\\false', \true); var_dump(true, false);
based on 1Jkbh
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true) bool(false)
Output for 4.3.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/RWfK1 on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/RWfK1 on line 4 bool(true) bool(false)