- array_map: documentation ( source)
- array_sum: documentation ( source)
- print_r: documentation ( source)
<?php
$arr1 = [1, 2, 3, 4];
$arr2 = [10, 20, 30, 40];
$arr3 = [100, 200, 300, 400];
$result = array_map(fn(... $i) => array_sum($i), $arr1, $arr2, $arr3);
print_r($result);