3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 3; $b = 5; $a = $a ^ $b; $b = $a ^ $b; $a = $a ^ $b; echo "a = $a; b = $b";
based on pCJfW
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
a = 5; b = 3
Output for hhvm-3.10.0

Process exited with code 153.