3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 0; if ((int)$a == 'UNLOCK') { echo "U\n"; } else { echo "D\n"; }
Output for 4.3.0 - 5.6.38, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.2.11
U