[php_mysql] Shopping cart

[rania2345]

Hello

I am struggling with Restaurant Shopping Cart 

Basically , onclick on the Add to cart , it add the food item to
$_Session['cart'] has $foodid, $qty

I am using ajax, to send the $foodid to the server then Get all the
Groups from the data base for this item . each Groups has a drop down
list of options , once the customer select option I need to send it to
ajax and send the option value to the server , assosiate all options
which is item
forexample 
Early Breakfast has 5options (bread, butter,cheese,coffee,milk)

my Session['cart'] now has only the item id , early Breakfast, 

I am not able to add those options from the drop down menu to the
session['cart']

here is my shopping cart class 
class Shopping_Cart {
    private $cart;
    
    function __construct($cart="") {
        $this->cart = $cart;
    }
    function getCart() {
        return $this->cart;
    }
    function addToCart($item) {
        if(isset($this->cart[$item])) {
            $this->cart[$item]++;
        } else {
            $this->cart[$item] = 1;
        }    
    }
    function updateCart($item,$number) {
        
            $this->cart[$item] = $number;
    }

    function deleteFromCart($item) {
        if(isset($this->cart[$item])) {
           // $this->cart[$item]--;
            //if($this->cart[$item] == 0) {
                   $this->cart[$item] == 0; 
                unset($this->cart[$item]);
            //}
        }
    }
    
Thanks 
God Bless you 
Rania