phpcms会员注册操作失败

// 示例配置
return [
    'database' => [
        'type' => 'mysql',
        'hostname' => 'localhost',
        'database' => 'phpcms',
        'username' => 'root',
        'password' => 'your_password',
        'hostport' => '3306',
        'charset' => 'utf8',
    ],
];

// 示例验证逻辑
if ($_POST) {
    $validate = new Validate([
        'username' => 'require|unique:user',
        'password' => 'require|min:6',
        'email' => 'require|email',
    ]);

    if (!$validate->check($_POST)) {
        echo $validate->getError();
        exit;
    }
}

// 示例预处理语句
$stmt = $db->prepare("INSERT INTO user (username, password, email) VALUES (?, ?, ?)");
$stmt->bind_param("sss", $username, $password, $email);
$username = $_POST['username'];
$password = password_hash($_POST['password'], PASSWORD_DEFAULT);
$email = $_POST['email'];
$stmt->execute();