digikala_challenge

<?php

$arr = [10, 3, 5, 6, 2];
$count = count($arr);
$prod = [];

for ($i = 0; $i < $count; $i++) {
    $prod[$i] = 1;
}

$left = 1;
for ($i = 0; $i < $count; $i++) {
    $prod[$i] = $left;
    $left = $left * $arr[$i];
}

$right = 1;
for ($i = $count - 1; $i >= 0; $i--) {
    $prod[$i] = $prod[$i] * $right;
    $right = $right * $arr[$i];
}

print_r($prod);