Write a function that returns a pair of numbers from the 2 arrays whose sum is the closest to the target

sum_closest_to_target

<!-- Given: two integer arrsya and a target which is just a number.
Write a function that returns a pair of numbers from the 2 arrays whose sum is the closest to the target
e.g ([-1, 3, 8, 2, 9, 5], [4, 1, 2, 10, 5, 20], 24))
should return [[3, 20], [5, 20]] -->

sum_closest_to_target.php

<?php

function sum_closest_to_target($s1 = [], $s2 = [], $t) {
	$tl = $t - 1;
	$tu = $t + 1;
	$result = [];

	for($i=0; $i<count($s1); $i++) {
		for($j=0; $j<count($s2); $j++) {
			if (($s1[$i] + $s2[$j] == $tl) || ($s1[$i] + $s2[$j] == $tu)) {
				$result[] = [$s1[$i], $s2[$j]];;
			}
		}
	}

	return $result;
}