shopping-cart.php

<?php
session_start();
if (isset($_POST['add_to_cart'])) {
    // If user has already add product to the cart
    if (isset($_SESSION['cart'])) {
        $products_array_ids = array_column($_SESSION['cart'], "product_id");
        // If product has already added to cart or not
        if (!in_array($_POST['product_id'], $products_array_ids)) {
            $product_id = $_POST['product_id'];

            $product_array = array(
                'product_id' => $_POST['product_id'],
                'product_name' => $_POST['product_name'],
                'product_price' => $_POST['product_price'],
                'product_image' => $_POST['product_image'],
                'product_quantity' => $_POST['product_quantity']
            );

            $_SESSION['cart'][$product_id] = $product_array;

            // Product has already been added
        } else {
            echo '<script>alert("Product was already added to the cart")</script>';
        }

        // If user the first add product to the cart
    } else {
        $product_id = $_POST['product_id'];
        $product_name = $_POST['product_name'];
        $product_price = $_POST['product_price'];
        $product_image = $_POST['product_image'];
        $product_quantity = $_POST['product_quantity'];

        $product_array = array(
            'product_id' => $product_id,
            'product_name' => $product_name,
            'product_price' => $product_price,
            'product_image' => $product_image,
            'product_quantity' => $product_quantity
        );

        $_SESSION['cart'][$product_id] = $product_array;
    }

    // Calculate total
    calculateTotalCart();

    // Remove product from the cart
} else if (isset($_POST['remove_product'])) {
    $product_id = $_POST['product_id'];

    unset($_SESSION['cart'][$product_id]);

    // Calculate total
    calculateTotalCart();

    // Codingan baru
} else if (isset($_POST['edit_quantity'])) {
    // We get the id from the form
    $product_id = $_POST['product_id'];
    $product_quantity = $_POST['product_quantity'];

    // We get product array from the session
    $product_array = $_SESSION['cart'][$product_id];

    // Update the product quantity
    $product_array['product_quantity'] = $product_quantity;

    // Return array back its place
    $_SESSION['cart'][$product_id] = $product_array;

    // Calculate total
    calculateTotalCart();
} else {
    //header('location: index.php');
}

function calculateTotalCart()
{
    $total_price = 0;
    $total_quantity = 0;

    foreach ($_SESSION['cart'] as $key => $value) {
        $product = $_SESSION['cart'][$key];
        $price = $product['product_price'];
        $quantity = $product['product_quantity'];

        $total_price = $total_price + ($price * $quantity);
        $total_quantity = $total_quantity + $quantity;
    }

    $_SESSION['total'] = $total_price;
    $_SESSION['quantity'] = $total_quantity;
}

$kurs_dollar = 15722;

function setRupiah($price)
{
    $result = "Rp".number_format($price, 0, ',', '.');
    return $result;
}

?>

<?php
include('layouts/header.php');
?>
<!-- Breadcrumb Section Begin -->
<section class="breadcrumb-option">
    <div class="container">
        <div class="row">
            <div class="col-lg-12">
                <div class="breadcrumb__text">
                    <h4>Shopping Cart</h4>
                    <div class="breadcrumb__links">
                        <a href="index.php">Home <i class="fas fa-chevron-right"></i></a>
                        <a href="shop.php">Shop <i class="fas fa-chevron-right"></i></a>
                        <span>Shopping Cart</span>
                    </div>
                </div>
            </div>
        </div>
    </div>
</section>
<!-- Breadcrumb Section End -->

<!-- Shopping Cart Section Begin -->
<section class="shopping-cart spad">
    <div class="container">
        <div class="row">
            <div class="col-lg-8">
                <div class="shopping__cart__table">
                    <table>
                        <thead>
                            <tr>
                                <th>Product</th>
                                <th>Quantity</th>
                                <th>Sub Total</th>
                                <th></th>
                            </tr>
                        </thead>
                        <tbody>
                            <?php if (isset($_SESSION['cart'])) { ?>
                                <?php foreach ($_SESSION['cart'] as $key => $value) { ?>
                                    <tr>
                                        <td class="product__cart__item">
                                            <div class="product__cart__item__pic">
                                                <img src="assets/img/product/<?php echo $value['product_image']; ?>" alt="">
                                            </div>
                                            <div class="product__cart__item__text">
                                                <h6><?php echo $value['product_name']; ?></h6>
                                                <h5><?php echo setRupiah(($value['product_price'] * $kurs_dollar)); ?></h5>
                                            </div>
                                        </td>
                                        <td class="quantity__item">
                                            <div class="quantity">
                                                <form method="POST" action="shopping-cart.php">
                                                    <div>
                                                        <input type="hidden" name="product_id" value="<?php echo $value['product_id'] ?>" />
                                                        <h6><input type="number" name="product_quantity" value="<?php echo $value['product_quantity']; ?>"></h6>
                                                        <!--
                                                        <input type="hidden" name="product_id" value="<?php echo $value['product_id'] ?>">
                                                        <input type="number" name="product_quantity" value="<?php echo $value['product_quantity']; ?>">
                                                        -->
                                                    </div>
                                                    <div>
                                                        <button class="editbtn" type="submit" name="edit_quantity"><i class="fa fa-refresh"></i> Update</button>
                                                    </div>
                                                    <!--
                                                    <div>
                                                        <button class="editbtn" type="submit" name="edit_quantity"><i class="fa fa-refresh"></i> Update Qty</button>
                                                    </div>
                                                    -->
                                                </form>
                                            </div>
                                        </td>
                                        <td class="cart__price">
                                            <span><?php echo setRupiah(($value['product_quantity'] * ($value['product_price'] * $kurs_dollar))); ?> </span>
                                        </td>
                                        <form method="POST" action="shopping-cart.php">
                                            <td>
                                                <input type="hidden" name="product_id" value="<?php echo $value['product_id'] ?>">
                                                <button type="submit" class="btn btn-danger" name="remove_product"><i class="fa fa-trash"></i></button>
                                            </td>
                                        </form>
                                    </tr>
                                <?php } ?>
                            <?php } ?>
                        </tbody>
                    </table>
                </div>
                <div class="row">
                    <div class="col-lg-6 col-md-6 col-sm-6">
                        <div class="continue__btn">
                            <a href="shop.php" class="btn btn-primary">Continue Shopping <i class="fa fa-arrow-circle-o-right fa-lg"></i></a>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-lg-4">
                <div class="cart__discount">
                    <h6>Discount codes</h6>
                    <form action="#">
                        <input type="text" placeholder="Coupon code">
                        <button type="submit">Apply</button>
                    </form>
                </div>
                <div class="cart__total">
                    <h6>Cart total</h6>
                    <ul>
                        <li>Total <span><?php if(isset($_SESSION['cart'])) { echo setRupiah($_SESSION['total'] * $kurs_dollar); } ?></span></li>
                    </ul>
                    <form method="POST" action="checkout.php">
                        <input type="submit" class="primary-btn" value="Checkout" name="checkout">
                    </form>
                </div>
            </div>
        </div>
    </div>
</section>
<!-- Shopping Cart Section End -->

<?php
include('layouts/footer.php');
?>