3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "test"; $b = 10; $a ^= $b ^= $a ^= $b; echo $a; echo $b;
Output for 7.1.0 - 7.2.0
Warning: A non-numeric value encountered in /in/lLt1G on line 6 100
Output for 5.3.22 - 7.0.20
100