Group identical items in PHP array & count

Question

I\'m trying to create an array that groups together similar/identical items and creates a count/ tally of the number of times that item occurs.

I\'ve managed to get an a

Answer 1

The outer part of your loop looks like it should work for this. You just need to make a couple of changes to how it is building the grouped array.

foreach ($orders as $order) {
    foreach ($order['lineItems']['elements'] as $item) {
        // use the item id as a key in the array you are building
        $id = $item['item']['id'];

        if (isset($products[$id])) {
            // if the item has already been added, increment the count
            $products[$id]['Count']++;
        } else {
            // otherwise, add the item with an initial count of 1
            $products[$id]['ID'] = $id;
            $products[$id]['Item'] = $item['name'];
            $products[$id]['Count'] = 1;
        }
    }
}

The resulting $products array will have item IDs as keys. If you want it to have numeric keys instead, you can then do:

$products = array_values($products);