3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [1, 2, 3, 4, 5]; $array = array_map(fn($item) => -$item, $array); var_dump($array);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array(5) { [0]=> int(-1) [1]=> int(-2) [2]=> int(-3) [3]=> int(-4) [4]=> int(-5) }

preferences:
87.93 ms | 406 KiB | 5 Q