Question

here is an example of the JSON generated from values retrieved from my database:

    {
    "product": [
        {
            "id": "1",
            "title": "producta",
            "size": "50",
            "weight": "1000",
            "quantity": "100",
            "cartID": "1"
        },
        {
            "id": "2",
            "title": "productb",
            "size": "50",
            "weight": "1000",
            "quantity": "100",
            "cartID": "2"
        },
        {
            "id": "3",
            "title": "productb",
            "size": "10",
            "weight": "9000",
            "quantity": "100",
            "cartID": "3"
        },
        {
            "id": "4",
            "title": "productd",
            "size": "100",
            "weight": "500",
            "quantity": "100",
            "cartID": "4"
        },
        {
            "id": "5",
            "title": "producta",
            "size": "45",
            "weight": "880",
            "quantity": "120",
            "cartID": "5"
        }
    ]
}

When the user selects to remove an item from the shopping cart, the variable $remove_cartid is passed to my PHP page. If $remove_cartid = 4, then the product with “cartID”: “4” must be removed:

    {
    "product": [
        {
            "id": "1",
            "title": "producta",
            "size": "50",
            "weight": "1000",
            "quantity": "100",
            "cartID": "1"
        },
        {
            "id": "2",
            "title": "productb",
            "size": "50",
            "weight": "1000",
            "quantity": "100",
            "cartID": "2"
        },
        {
            "id": "3",
            "title": "productb",
            "size": "10",
            "weight": "9000",
            "quantity": "100",
            "cartID": "3"
        },
        {
            "id": "5",
            "title": "producta",
            "size": "45",
            "weight": "880",
            "quantity": "120",
            "cartID": "5"
        }
    ]
}

I have made several attempts using the PHP explode function to try and remove the product from the JSON list, but I feel that there is a better way (one that will actually work)

Any advice or help is greatly appreciated

Answer 1

$list = json_decode($jsonList, true);

foreach ($list['product'] as $key => $product) {
    if ($product['cartID'] == $remove_cartid) {
        unset($list['product'][$key]);
    }
}

$jsonList = json_encode($list);