Question

I want to implement the shopping cart by using multidimensional session array but don’t know how to access them. For example,

• case1: user add one item to the cart with name “x” and size”m”. then add again with name “x” and size”m”

line1: pname”x” size”m” quantity”2″

• case2: when user add one item to the cart with name “x” and size”m”. then the user add another item to the cart with name “x” but size”s”.

How can I manipulate it as 2 line of order?

line1: pname”x” size”m” quantity”1″
line2: pname”x” size”s” quantity”1″

     if (!isset($_SESSION['order'])) {
         $_SESSION['order'] = array();  
     }
     $_SESSION['order'][] = array('id'=>$pID, 'size'=>$size, 'quantity'=>0);

   switch ($action) {
    case "add":
        $_SESSION['order'][]['quantity']++;
    break;

    case "remove":
        unset($_SESSION['order'][][$pID]);
    break;

    case "empty":
        unset($_SESSSION['order']);
    break;
}

Answer 1

Your session will get an element every time you call []. Add $pID as variable id:

Change to:

if (!isset($_SESSION['order'])) {
    $_SESSION['order'] = array();  
}
$_SESSION['order'][$pID.'-'.$size] = array('quantity'=>0);

switch ($action) {
    case "add":
        $_SESSION['order'][$pID.'-'.$size]['quantity']++;
        break;

    case "remove":
        unset($_SESSION['order'][$pID.'-'.$size]);
        break;

    case "empty":
        // unset($_SESSION['cart']);
        unset($_SESSSION['order']);
        break;
}

You can later access that product with $_SESSION['order'][$pID.'-'.$size]

To access them:

foreach($_SESSION['order'] as $key => $one){
    list($pid, $size) = explode('-', $key);
}