3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $asd = array('one'=> 1, 'two'=>2); $asc = reset(array_keys($asd));
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/7WJ2g on line 5
Output for 5.3.18 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/7WJ2g on line 5