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php充值功能实现

2026-02-13 23:41:12PHP

数据库设计

创建用户账户表和交易记录表，存储用户余额和充值记录。

CREATE TABLE `user_account` (
  `user_id` int(11) NOT NULL,
  `balance` decimal(10,2) DEFAULT 0.00,
  PRIMARY KEY (`user_id`)
);

CREATE TABLE `transaction` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) NOT NULL,
  `amount` decimal(10,2) NOT NULL,
  `payment_method` varchar(50) NOT NULL,
  `transaction_time` datetime DEFAULT CURRENT_TIMESTAMP,
  `status` enum('pending','completed','failed') DEFAULT 'pending',
  PRIMARY KEY (`id`)
);

充值页面表单

设计前端表单，提交充值金额和支付方式。

php充值功能实现

<form action="recharge_process.php" method="post">
  <label>充值金额：</label>
  <input type="number" name="amount" min="1" step="0.01" required>

  <label>支付方式：</label>
  <select name="payment_method" required>
    <option value="alipay">支付宝</option>
    <option value="wechat">微信支付</option>
    <option value="bank">银行卡</option>
  </select>

  <button type="submit">确认充值</button>
</form>

处理充值请求

后端验证金额并调用支付接口，记录交易状态。

// recharge_process.php
$amount = $_POST['amount'];
$paymentMethod = $_POST['payment_method'];
$userId = $_SESSION['user_id'];

// 验证金额有效性
if ($amount <= 0) {
  die("充值金额必须大于零");
}

// 记录交易
$stmt = $pdo->prepare("INSERT INTO transaction (user_id, amount, payment_method) VALUES (?, ?, ?)");
$stmt->execute([$userId, $amount, $paymentMethod]);
$transactionId = $pdo->lastInsertId();

// 调用支付接口（示例为伪代码）
$paymentResult = callPaymentAPI($paymentMethod, $amount, $transactionId);

if ($paymentResult['success']) {
  // 更新交易状态
  $pdo->prepare("UPDATE transaction SET status='completed' WHERE id=?")->execute([$transactionId]);

  // 更新用户余额
  $pdo->prepare("UPDATE user_account SET balance=balance+? WHERE user_id=?")->execute([$amount, $userId]);

  header("Location: recharge_success.php");
} else {
  $pdo->prepare("UPDATE transaction SET status='failed' WHERE id=?")->execute([$transactionId]);
  die("支付失败：" . $paymentResult['error']);
}

支付接口集成

根据实际需求集成支付宝、微信等官方SDK。

php充值功能实现

支付宝示例（需配置公钥和私钥）：

require_once('alipay-sdk/AopSdk.php');
$alipay = new AopClient();
$alipay->gatewayUrl = 'https://openapi.alipay.com/gateway.do';
$alipay->appId = 'your_app_id';
$alipay->rsaPrivateKey = 'your_private_key';
$alipay->alipayrsaPublicKey = 'alipay_public_key';

异步通知处理

配置支付平台的异步回调URL，验证通知并更新订单状态。

// notify.php
$alipayNotify = new AlipayNotify($alipayConfig);
$verifyResult = $alipayNotify->verifyNotify();

if ($verifyResult && $_POST['trade_status'] == 'TRADE_SUCCESS') {
  $transactionId = $_POST['out_trade_no'];
  $pdo->prepare("UPDATE transaction SET status='completed' WHERE id=?")->execute([$transactionId]);
  echo "success";
} else {
  echo "fail";
}