如何發送和提取

Question

類

我需要發送和獲取類到另一個類像在MVC方法的變量：

class Demo { 

private $vars = array(); 

function set($var , $data) { 
    $this->vars[$var] = $data; 
} 


function request() { 

    extract($this->vars); 

     var_dump($vars); 

    } 

} 

，我想用上面的類成這樣：

class Test extends foo { 

    function __construct(){ 
     $this->demo = new Demo(); 
    } 

    function register(){ 
     $user = Load::model('user');//Now User Is An Object 
     $this->demo->set('user',"$user");//This Is Error 
     $this->demo->request(); 
} 

Catchable fatal error: Object of class user could not be converted to string in

Answer 1

刪除引號

$this->demo->set('user', $user); 

而且不要忘了在你的類範圍

class Test extends foo { 
    public $demo; 

創建您的變量應該做的伎倆

Answer 2

class Test extends foo { 
     protected $demo; // you missed to declare this variable  

     function __construct(){ 
      $this->demo = new Demo(); 
     } 

     function register() { 
      $user = Load::model('user');//Now User Is An Object 
      $this->demo->set('user', $user); 
      $this->demo->request(); 
     } 
}