3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define('\true', false); if (\true) { echo "TRUE"; } else { echo "FALSE!!!"; }
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
TRUE
Output for 4.3.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/9IJJO on line 5 TRUE