PHP购物车是一种用于在线商店的网页应用程序功能,它允许用户将商品添加到购物车中,然后在结账时查看和管理这些商品。购物车通常会保存用户选择的商品信息,如商品ID、名称、数量和价格等。
以下是一个简单的基于会话的PHP购物车示例:
<?php
session_start();
if (isset($_POST['add_to_cart'])) {
$product_id = $_POST['product_id'];
$product_name = $_POST['product_name'];
$product_price = $_POST['product_price'];
if (isset($_SESSION['cart'])) {
$cart = $_SESSION['cart'];
} else {
$cart = [];
}
if (array_key_exists($product_id, $cart)) {
$cart[$product_id]['quantity'] += 1;
} else {
$cart[$product_id] = [
'name' => $product_name,
'price' => $product_price,
'quantity' => 1
];
}
$_SESSION['cart'] = $cart;
}
if (isset($_SESSION['cart'])) {
$cart = $_SESSION['cart'];
} else {
$cart = [];
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Shopping Cart</title>
</head>
<body>
<h1>Shopping Cart</h1>
<form method="post" action="">
<input type="hidden" name="product_id" value="1">
<input type="hidden" name="product_name" value="Product 1">
<input type="hidden" name="product_price" value="10.00">
<button type="submit" name="add_to_cart">Add to Cart</button>
</form>
<h2>Cart Contents</h2>
<ul>
<?php foreach ($cart as $product_id => $product): ?>
<li>
<?php echo $product['name']; ?> - $<?php echo $product['price']; ?> x <?php echo $product['quantity']; ?>
</li>
<?php endforeach; ?>
</ul>
</body>
</html>
通过以上示例代码和解决方案,您可以更好地理解和实现PHP购物车功能。
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