3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = [['a']]; array_map(reset(...), $data);
Output for 8.5.3
Warning: reset(): Argument #1 ($array) must be passed by reference, value given in /in/T4rPe on line 4
preferences:
42.46 ms | 480 KiB | 4 Q