从粉丝页面删除应用程序

Question

如何使用php或javascript Sdk从Facebook粉丝页面删除/卸载应用程序

   $facebook = new Facebook(array(
  'appId'  => 'APP_Id',
  'secret' => 'secret_key',
 ));    
 $page_info = $facebook->api("/".$fbPageId."?fields=access_token");

  if( !empty($page_info['access_token']) ) {
        $args = array(
            'access_token'  => $page_info['access_token']
        );
        $pageAccessToken = $page_info['access_token'];
           }

在上面的代码中，$ page_info给出了id而不是访问令牌