php 购物模版

// 示例代码：添加商品到购物车
session_start();
if (isset($_POST['add_to_cart'])) {
    $product_id = $_POST['product_id'];
    if (!isset($_SESSION['cart'])) {
        $_SESSION['cart'] = [];
    }
    if (array_key_exists($product_id, $_SESSION['cart'])) {
        $_SESSION['cart'][$product_id]++;
    } else {
        $_SESSION['cart'][$product_id] = 1;
    }
}

// 示例代码：调用支付网关
$amount = 100; // 支付金额
$currency = 'USD'; // 货币类型
$description = 'Product Purchase'; // 支付描述
$payment_gateway_url = 'https://payment-gateway.com/api/process';

$post_data = [
    'amount' => $amount,
    'currency' => $currency,
    'description' => $description,
    'token' => $_POST['token'] // 支付令牌
];

$response = curl_init($payment_gateway_url);
curl_setopt($response, CURLOPT_RETURNTRANSFER, true);
curl_setopt($response, CURLOPT_POST, true);
curl_setopt($response, CURLOPT_POSTFIELDS, http_build_query($post_data));
$result = curl_exec($response);
curl_close($response);

if ($result === 'success') {
    // 支付成功处理
} else {
    // 支付失败处理
}