教你如何使用PHP和Vue.js开发防御数据窃取攻击的应用程序

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

try {
    $pdo = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully";
} catch(PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}
?>

<?php
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username AND password = :password");
$stmt->bindParam(':username', $username);
$stmt->bindParam(':password', $password);
$stmt->execute();
$result = $stmt->fetchAll();
?>

<?php
session_start();

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (!isset($_POST['csrf_token']) || $_POST['csrf_token'] !== $_SESSION['csrf_token']) {
        die("Invalid CSRF token");
    }
    
    // 执行正常的逻辑
}
?>

<form action="process.php" method="post">
    <input type="hidden" name="csrf_token" value="<?php echo $_SESSION['csrf_token']; ?>">
    <!-- 其他表单字段 -->
    <button type="submit">Submit</button>
</form>

<template>
    <div>
        <!-- 渲染的逻辑 -->
    </div>
</template>

<script>
export default {
    data() {
        return {
            sensitiveData: ''
        }
    },
    methods: {
        encryptData(data) {
            // 使用加密算法加密数据
            // 返回加密后的数据
        },
        sendData() {
            const encryptedData = this.encryptData(this.sensitiveData);
            
            // 将加密后的数据发送到后端
        }
    }
}
</script>