duanli12176 2013-02-01 19:20
浏览 97
已采纳

使用类中的方法创建类?

I would like to create a property which is a class in and of itself and add other methods to it within the "parent" class MyName, so that I would be able to do something like

$myname = new MyName();
$myname->event->post($params);

I've tried the following, but it doesn't work:

class MyName {
    public function __construct() {
        $this->event = new stdClass();
        $this->event->post = function($params) {
            print_r($params);
        };
    }
}

$x = new MyName();
$x->event->post(array(1, 2, 3));

Which simply ends up flagging the following fatal error:

Fatal error: Call to undefined method stdClass::post() in C:\xampp\htdocs\Arkwayecreation\primepromotions\api\classes\FacebookWrapper.php on line 25
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3条回答 默认 最新

  • doushangan3690 2013-02-01 19:30
    关注

    You could use __call to access an internal array of closures, perhaps something like this:

    class MyName {
      public function __construct() {
         $this->event = new EventObj();
         $this->event->post = function($params) {
              print_r($params);
          };
      }
    }
    
    class EventObj {
    
      private $events = array();
    
      public function __set($key, $val) {
        $this->events[$key] = $val;
      }
    
      public function __call($func, $params) {
         if (isset($this->events[$func])) {
           call_user_func_array($this->events[$func], $params);
         }
      }
    }
    
    
    $x = new MyName();
    $x->event->post(array(1, 2, 3));
    

    Output:

    Array
    (
      [0] => 1
      [1] => 2
      [2] => 3
    )
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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