对嵌套数组中的数据进行计数和求和

Question

所以我要实现的是对数据求和并排序到嵌套数组。

所以说我以这种格式接收结果：

{
    "resources": "[{\"name\": \"Product 1\", \"brand_id\": \"1\", \"quantity\": 3}]",
    "reportable_id": 1,
}
{
    "resources": "[{\"name\": \"Product 1\", \"brand_id\": \"1\", \"quantity\": 2}]",
    "reportable_id": 1,
}
{
    "resources": "[{\"name\": \"Product 2\", \"brand_id\": \"2\", \"quantity\": 2}]",
    "reportable_id": 7,
}
{
    "resources": "[{\"name\": \"Product 6\", \"brand_id\": \"8\", \"quantity\": 2}]",
    "reportable_id": 7,
}
{
    "resources": "[{\"name\": \"Product 3\", \"brand_id\": \"3\", \"quantity\": 3}]",
    "reportable_id": 4,
}
{
    "resources": "[{\"name\": \"Product 3\", \"brand_id\": \"3\", \"quantity\": 3}]",
    "reportable_id": 4,
}

结果应该是：

"1": {
    {
        name: Product 1,
        brand_id: 1,
        quantity: 5 // see we sum the data of all products with the same brand_id in the reportable ids.
    }
}
"7": {
    {
        name: Product 2,
        brand_id: 2,
        quantity: 2
    },
    {
        name: Product 6,
        brand_id: 8,
        quantity: 2
    }
}
"4": {
    {
        name: Product 3,
        brand_id: 3,
        quantity: 6
    }
}

如果我遗漏了reportable_id，那么我基本上可以实现这一点。 正确的做法是什么？ 这是到目前为止我得到的，不是，因为将这些项求和并放入正确的数组索引并不完全应该是这样：

function sortObjects($objects)
{
    $data = []; 
    $product_ids = [];
    $device_data = [];

    foreach($objects as $object) {

        $encoded_data = json_decode($object['resources'], true);
        $reportable_id = json_decode($object['reportable_id'], true);
        foreach($encoded_data as $key => $endoresment) {

            $data[$encoded_data[$key]['brand_id']]['name'] = $encoded_data[$key]['name'];
            $data[$encoded_data[$key]['brand_id']]['brand_id'] = $encoded_data[$key]['brand_id'];
            if (!in_array($encoded_data[$key]['brand_id'], $product_ids)) {
                $product_ids[] = $encoded_data[$key]['brand_id'];
                $data[$encoded_data[$key]['brand_id']]['quantity'] = $encoded_data[$key]['quantity'];
            } else {
                $data[$encoded_data[$key]['brand_id']]['quantity'] += $encoded_data[$key]['quantity'];
            }
            $device_data[$reportable_id] = $data;
        }

    }
    return $device_data;
}

数据将作为php数组返回。