php可动态定制的商城系统

PHP可以用来创建动态定制的商城系统。以下是一个简单的PHP商城系统的示例代码，包括产品列表页、产品详情页和购物车功能：




// 连接数据库
$db = new PDO('mysql:host=localhost;dbname=shop_db;charset=utf8', 'username', 'password');
 
// 获取所有产品
$stmt = $db->query('SELECT * FROM products');
$products = $stmt->fetchAll(PDO::FETCH_ASSOC);
 
// 购物车
$cart = array();
 
// 添加到购物车
if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['add_to_cart'])) {
    $product_id = $_POST['product_id'];
    if (isset($cart[$product_id])) {
        $cart[$product_id]['quantity']++;
    } else {
        $stmt = $db->prepare('SELECT * FROM products WHERE id = :id');
        $stmt->execute(array(':id' => $product_id));
        $product = $stmt->fetch(PDO::FETCH_ASSOC);
        $cart[$product_id] = array(
            'product' => $product,
            'quantity' => 1
        );
    }
}
 
// 清空购物车
if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['clear_cart'])) {
    $cart = array();
}




// 产品列表页
<html>
<head>
    <title>商城系统 - 产品列表</title>
</head>
<body>
    <h1>产品列表</h1>
    <?php foreach ($products as $product): ?>
        <div>
            <h3><?php echo htmlspecialchars($product['name']); ?></h3>
            <p><?php echo htmlspecialchars($product['description']); ?></p>
            <form method="post" action="">
                <input type="hidden" name="product_id" value="<?php echo $product['id']; ?>">
                <input type="submit" name="add_to_cart" value="加入购物车">
            </form>
        </div>
    <?php endforeach; ?>
    <a href="cart.php">查看购物车</a>
</body>
</html>




// 购物车页
<html>
<head>
    <title>商城系统 - 购物车</title>
</head>
<body>
    <h1>购物车</h1>
    <?php if (empty($cart)): ?>
        <p>购物车为空。</p>
    <?php else: ?>
        <?php foreach ($cart as $item): ?>
            <div>
                <h3><?php echo htmlspecialchars($item['product']['name']); ?></h3>
                <form method="post" action="">
                    <input type="hidden" name="product_id" value="<?php echo $item['product']['id']; ?>">
                    <label>数量: 
                        <input type="number" name="quantity" value="<?php echo $item['quantity']; ?>" min="1">
                    </label>
                    <input t

php可动态定制的商城系统

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