Laravel collection->push() not working properly

Question

I want to collect product and push to the session cart.

$product= Product::find(1);
$product2= Product::find(2);

session(['cart' => collect($product)]);

session(['cart' => session('cart')->push($product2)])

This is my output with some dummy data.

{
  "0": {
    "id": 2,
    "sku": "SKU914",
    "price": 1.0,
    "special_price": 0.91,
    "weight": 763,
    "barcode": "0434120288572",
    "created_at": "2020-01-31 14:39:53",
    "updated_at": "2020-01-31 14:39:53"
  },
  "id": 1,
  "sku": "SKU579",
  "price": 22.8,
  "special_price": 19.14,
  "weight": 478459,
  "barcode": "1390377688",
  "created_at": "2020-01-31 14:34:59",
  "updated_at": "2020-01-31 14:34:59"
}

The second product ($product2) which I pushed become outside of the array. How should I do to make it like "0": {}, "1": {}

Answer 1

Just place $product in an array.

session(['cart' => collect([$product])]);
session(['cart' => session('cart')->push($product2)]);

Or just push

session(['cart' => session('cart')->push($product)]);
session(['cart' => session('cart')->push($product2)]);