3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array("2", "2"); $car = end(array_keys($arr)); var_dump($car);
based on AA12m
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/VoXvv on line 3 int(1)
Output for 5.3.21 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/VoXvv on line 3 int(1)