gabrieljmj/cart

Simple shopping cart system

Gabrieljmj\Cart

, _(*1)

Simple shopping cart system., _(*2)

Usage

Adding product to cart

Use the method \Gabrieljmj\Cart\Cart::add(ProductInterface $product) to add a product. If previously the same product was added, will be add one more to cart., _(*3)

use Gabrieljmj\Cart\Product\Product;
use Gabrieljmj\Cart\Cart;

$product = new Product(1, 'TV', 499.90, ['tv', 'led']);
$cart = new Cart();
$cart->add($product);

Removing product of a cart

Using \Gabrieljmj\Cart\Cart::remove($product[, $amount = 0]) you can remove products of a cart. If $amount be 0, all products of that products will be removed. The argument $product can be an instance of \Gabrieljmj\Cart\Product\ProductInterface or product id., _(*4)

$cart->remove(1);

Clearing the cart

To this use the method \Gabrieljmj\Cart\Cart::clear., _(*5)

$cart->clear();

Verifying if the cart has a product

The $product argument can be the product id or an instance of \Gabrieljmj\Cart\Product\ProductInterface. The return will be boolean., _(*6)

$cart->has($product);

Counting how many products has in the cart

The method \Gabrieljmj\Cart\Cart::count() will return how many items has in the cart., _(*7)

$cart->count();

Counting how many products of a type has in the cart

Use the method \Gabrieljmj\Cart\Cart::getTotalOfAProduct($product) and like others, $product can be an instance of \Gabrieljmj\Cart\Product\ProductInterface or product id., _(*8)

$cart->getTotalOfAProduct($product);

Counting how many types of products has in the cart

And this method (\Gabrieljmj\Cart\Cart::countUniqueItems()) counts how many types of products has in the cart., _(*9)

$cart->countUniqueItems();

Calculating total price of the cart

The method \Gabrieljmj\Cart\Cart::getTotalPrice() returns how much costs the cart., _(*10)

$cart->getTotalPrice();

Iterating with all products

Each product will return an instance of \Gabrieljmj\Cart\Product\ProductInterface:, _(*11)

$iterator = $cart->getIterator();

while ($iterator->valid()) {
    $curr = $iterator->current();
    echo '<li><b>Product:</b>' . $curr->getProduct()->getName() . ' / <b>Total:</b> ' . $cart->getTotalOfAProduct($curr) . '</li>';
    $iterator->next();
}

Storaging

The instance of the cart usually is save on a session or a cookie., _(*12)

$_SESSION['cart'] = $cart;
//or
setcookie('cart', $cart);