CODEWITHSUNDEEP
phparraysmultidimensional-arrayreplace
AlexioVay
AlexioVay

Reputation: 4527

Replacing an array with specific id?

I have this Array:

Array
(
    [cart] => Array
        (
            [0] => Array
                (
                    [id] => 1
                    [size] => XS
                    [count] => 1
                )

            [1] => Array
                (
                    [id] => 2
                    [size] => XS
                    [count] => 1
                )

        )

)

How can I replace the array with id 2 in this multidimensional array for example?

I'm building an online-shop-system and want to add T-Shirts to a cart. If an article that already have been added would be added again, it should replace the cart-session-variable with the new input (new size, new count).

And how can I check if an specific id has already been added?

Upvotes: 0

Views: 74

Answers (3)

Cyclonecode
Cyclonecode

Reputation: 30071

Since every product has its own unique id you could use the product id as the index in the array, then you would be able to do something like this:

// pseudo code
function add2Cart($product_id, $count, $size) {
   global $cart;
   $cart[$product_id] = array(
      'count' => $count,
      'size' => $size
   );
)

Then you would have an array looking like:

[cart] => Array
    (
        [1] => Array
            (
                [size] => XS
                [count] => 1
            )

        [2] => Array
            (
                [size] => XS
                [count] => 1
            )

    )

Where each index is a products id number.

Upvotes: 0

mcuadros
mcuadros

Reputation: 4144

Given $cart with n products and $article as new an article to add:

$c = count($cart);
for($i=0;$i<$c;$i++) {
    if ($cart[$i]['id'] == $article['id']) {
        $cart[$i] = $article;
    }
}

If u use the product_id as key just

if (isset($cart[$article['id']]) {
    $cart[$article['id']] = $article;
}

Upvotes: 1

Rob
Rob

Reputation: 12872

Not sure exactly what your looking for but I think this will do it.

foreach ($array['cart'] as &$item) {
    if ($item['id'] == $_POST['id']) {
        $item = $_POST;
    }
} unset($item);

Upvotes: 1

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