3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php array_pop(explode('fu', 'php fu php'));
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/7Hk17 on line 3
Output for 5.3.17 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/7Hk17 on line 3