I have the following php code that add items to a session based shopping cart. It works fine when using items that don't come in a variation like size for example. The products consist of various clothes. Some come in different sizes and some not. One product can be a t-shirt that come in different sizes and another can be a cap that just is available in one size. I want to be able to add the t-shirt to the cart in different sizes. As it is now it only add to the session based cart if it not present. If present it will update the qty.
<?php
ini_set('display_errors', 'On');
/*include("session.php"); */
session_start();
if (isset($_POST["add_to_cart"]))
{
if (isset($_SESSION["shopping_cart"]))
{
$item_array_id = array_column($_SESSION["shopping_cart"],"item_id");
if (!in_array($_GET["id"], $item_array_id))
{
$count = count($_SESSION["shopping_cart"]);
$item_array = array(
'item_id' => $_GET["id"],
'item_name' => $_POST["hidden_name"],
'item_description' => $_POST["hidden_description"],
'item_price' => $_POST["hidden_price"],
'item_qty' => $_POST["hidden_qty"],
'itm_size' => $_POST["select-size-1"],
'itm_color' => $_POST["product-1-color"]
);
$_SESSION["shopping_cart"][$count] = $item_array;
}
else
{
// article exsits, update or remove
foreach($_SESSION["shopping_cart"] as $keys => $values)
{
if ($values["item_id"] == $_GET["id"] and ($values["itm_size"] != $_GET["select-size-1"]))
{
// check it item id is the same but color differs, if so add to session array
$count = count($_SESSION["shopping_cart"]);
$item_array = array(
'item_id' => $_GET["id"],
'item_name' => $_POST["hidden_name"],
'item_description' => $_POST["hidden_description"],
'item_price' => $_POST["hidden_price"],
'item_qty' => $_POST["hidden_qty"],
'itm_size' => $_POST["select-size-1"],
'itm_color' => $_POST["product-1-color"]
);
$_SESSION["shopping_cart"][$count] = $item_array;
}
else
{
// Orginal kod
if ($values["item_id"] == $_GET["id"])
{
// Om man anger 0 som antal ska artikel tas bort
if ($_POST["hidden_qty"] == "")
{
unset($_SESSION["shopping_cart"][$keys]);
}
else
{
// update qty
$_SESSION['shopping_cart'][$keys]['item_qty'] += $_POST["hidden_qty"];
}
}
}
}
}
}
else
{
//echo '<script>alert("session is set")</script>';
$item_array = array(
'item_id' => $_GET["id"],
'item_name' => $_POST["hidden_name"],
'item_description' => $_POST["hidden_description"],
'item_price' => $_POST["hidden_price"],
'item_qty' => $_POST["hidden_qty"],
'itm_size' => $_POST["select-size-1"],
'itm_color' => $_POST["product-1-color"]
);
$_SESSION["shopping_cart"][0] = $item_array;
}
}
?>
So the qty should update based on ID on Size...
UPDATE: I have added what I thought would help considering handling sizes also. It do not work, if I add a t-shirt with Size XL it add it as it should, but when I add another t-shirt with size XL it does not change the qty but 2 more t-shirts with the same size?
As explain by 04FS, you doesn't check the size but only the product ID.
[EDIT]
Ok, let's simplify and clarify the all code... Carrefull to this line: $_SESSION["shopping_cart"][$index]['item_qty']++;, I'm not sure it's exactly what you want.
if (isset($_POST["add_to_cart"]))
{
$index = false;
if(!isset($_SESSION["shopping_cart"])) {
$index = false;
}
else {
foreach ($_SESSION["shopping_cart"] as $key => $value) {
if($value["item_id"] == $_REQUEST["id"] && $value['itm_size'] == $_POST['select-size-1']) {
$index = $key;
break;
}
}
}
if($index !== false) {
$_SESSION["shopping_cart"][$index]['item_qty']++;
}
else {
// create new entry in the session shopping_cart
$_SESSION['shopping_cart'][] = array(
'item_id' => $_REQUEST["id"],
'item_name' => $_POST["hidden_name"],
'item_description' => $_POST["hidden_description"],
'item_price' => $_POST["hidden_price"],
'item_qty' => $_POST["hidden_qty"],
'itm_size' => $_POST["select-size-1"],
'itm_color' => $_POST["product-1-color"]
);
}
}
[/EDIT]
Feel free to ask if you need help with that.