- var_dump: documentation ( source)
<?php
$products = [1, 2, 3, 4, 5];
$vendors = ["Amazon", "Newegg", "##php"];
$vendorProducts = [];
foreach ($vendors as $vendor) {
$vendorProducts[$vendor] = [];
foreach ($products as $productID) {
$vendorProducts[$vendor][] = $productID;
}
}
var_dump($vendorProducts);