<?php

class User{

    private $id;
    private $username;
    private $email;
    private $password;

    public function __construct($username, $password){
        $this->username = $username;
        $this->password = $password;
    }
    public function __destruct()
    {
        // TODO: Implement __destruct() method.
        echo 'Destructor is called<br>';
    }
    public function register(){
            echo 'User is registered<br>';
    }
    public function login(){
            $this->auth_user();
    }
    public function auth_user(){
            echo $this->username.' is authenticated<br>';
    }

}

$user = new User('Rony', '1234');
$user->register();
$user->login();