PHP私有方法如何调用_PHP私有方法调用限制与内部使用说明

class User {<br>    private function log($message) {<br>        echo "Log: $message\n";<br>    }<br><br>    public function login() {<br>        $this->log("用户登录");<br>        echo "登录成功";<br>    }<br>}<br><br>$user = new User();<br>$user->login();        // 正常输出日志和登录信息<br>// $user->log('test'); // 报错：无法从外部调用私有方法<br>

class Admin extends User {<br>    public function action() {<br>        // $this->log("操作"); // 错误：父类私有方法不可见<br>    }<br>}

class Payment {<br>    private function validateAmount($amount) {<br>        return is_numeric($amount) && $amount > 0;<br>    }<br><br>    private function generateToken() {<br>        return bin2hex(random_bytes(16));<br>    }<br><br>    public function process($amount) {<br>        if (!$this->validateAmount($amount)) {<br>            throw new InvalidArgumentException("金额无效");<br>        }<br>        $token = $this->generateToken();<br>        echo "支付处理中，令牌：$token";<br>    }<br>}

$reflector = new ReflectionMethod('User', 'log');<br>$reflector->setAccessible(true); // 绕过私有访问限制<br>$reflector->invoke($user, '强制调用私有方法');