<?php
function arraySum(array $array) {
$stack = [$array];
$sum = 0;
while (($items = array_pop($stack))) {
foreach ($items as $item) {
if (is_array($item)) {
$stack[] = $item;
}
else {
$sum += $item;
}
}
}
return $sum;
}
echo arraySum([1, [1, 1], [1, [1, 1]]]);
- Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.24, 8.3.0 - 8.3.12
- 6
preferences:
76.79 ms | 407 KiB | 5 Q