3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'football'; $b = 'soccerballs'; echo strcmp($a^$a,$b^$b), "\n"; echo strcmp($b^$b,$a^$a), "\n";
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
-3 3