PHP MySQL:更新用户配置文件

<?php
// 连接到MySQL数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 获取用户输入
$user_id = $_POST['user_id'];
$theme = $_POST['theme'];
$language = $_POST['language'];

// 准备SQL语句
$sql = "UPDATE user_profiles SET theme=?, language=? WHERE user_id=?";

// 准备并绑定
$stmt = $conn->prepare($sql);
$stmt->bind_param("ssi", $theme, $language, $user_id);

// 执行SQL语句
if ($stmt->execute()) {
    echo "用户配置文件更新成功";
} else {
    echo "更新失败: " . $stmt->error;
}

// 关闭连接
$stmt->close();
$conn->close();
?>