從核心控制器笨

Question

這是我歡迎控制器

class Welcome extends MY_Controller 
{ 
    function __construct() 
    { 
     parent::__construct(); 

     $this->load->library('tank_auth'); 
    } 

    function index() 
    { 
     if (!$this->tank_auth->is_logged_in()) { 
      redirect('/auth/login/'); 
     } else { 
      $this->load->view('welcome', $player); 
     } 
    } 
} 

MY_Controller

class MY_Controller extends CI_Controller 
{ 
    function __construct() 
    { 
     parent::__construct(); 

     $this->load->library('tank_auth'); 

     if ($this->tank_auth->is_logged_in()) { 

      $player = $this->tank_auth->get_userdata($this->tank_auth->get_user_id()); 

      if ($player === NULL) { 
       $this->tank_auth->logout(); 
      } 
     } 
    } 
} 

我得到：

A PHP Error was encountered 

Severity: Notice 

Message: Undefined variable: player 

Filename: controllers/welcome.php 

Line Number: 17 
Hi, 
A PHP Error was encountered 

Severity: Notice 

Message: Undefined variable: username 

Filename: views/welcome.php 

Line Number: 1 

我真的需要重新分配所有的數據？還有其他方法嗎？

Answer 1

$player設置在MY_Controller類的__construct()中。 index()如何在Welcome函數中自動獲取它的值？

而是將$player定義爲MY_Controller類中的受保護屬性，以便擴展它的每個控制器類都可以使用值$player。

class MY_Controller extends CI_Controller 
{ 
    protected $player; 

    function __construct() 
    { 
     parent::__construct(); 

     $this->load->library('tank_auth'); 

     if ($this->tank_auth->is_logged_in()) { 
      $this->player = $this->tank_auth->get_userdata($this->tank_auth->get_user_id()); 

      if ($this->player === NULL) { 
       $this->tank_auth->logout(); 
      } 
     } 
    } 
} 

現在，您的Welcome類可以使用它的值。

class Welcome extends MY_Controller 
{ 
    function __construct() 
    { 
     parent::__construct(); 

     $this->load->library('tank_auth'); 
    } 

    function index() 
    { 
     if (!$this->tank_auth->is_logged_in()) { 
      redirect('/auth/login/'); 
     } else { 
      $this->load->view('welcome', $this->player); 
     } 
    } 
}