'致命错误:在'PHP PHP应用程序中'找不到'CURLFile'错误'错误'将照片上传到用户的时间线'

我刚刚尝试使用Facebook PHP SDK开发Facebook应用程序.Facebook开发者网站提供的示例代码如下.

         'YOUR_APP_ID',
    'secret' => 'YOUR_APP_SECRET',
    'fileUpload' => true,
    'allowSignedRequest' => false // optional but should be set to false for non-canvas apps
  );

  $facebook = new Facebook($config);
  $user_id = $facebook->getUser();

  $photo = './mypic.png'; // Path to the photo on the local filesystem
  $message = 'Photo upload via the PHP SDK!';
?>

  
  

  api('/me/photos', 'POST', array(
                                         'source' => new CURLFile($photo, 'image/png'),
                                         'message' => $message,
                                         )
                                      );
        echo '
Photo ID: ' . $ret_obj['id'] . '
';
        echo '
logout';
      } catch(FacebookApiException $e) {
        // If the user is logged out, you can have a 
        // user ID even though the access token is invalid.
        // In this case, we'll get an exception, so we'll
        // just ask the user to login again here.
        $login_url = $facebook->getLoginUrl( array(
                       'scope' => 'photo_upload'
                       )); 
        echo 'Please login.';
        error_log($e->getType());
        error_log($e->getMessage());
      }   
    } else {

      // No user, print a link for the user to login
      // To upload a photo to a user's wall, we need photo_upload  permission
      // We'll use the current URL as the redirect_uri, so we don't
      // need to specify it here.
      $login_url = $facebook->getLoginUrl( array( 'scope' => 'photo_upload') );
      echo 'Please login.';

    }

  ?>

  

但是当我运行该程序时,它显示错误'Fatal error: Class 'CURLFile' not found'.在搜索解决方案时,我发现新的PHP Facebook SDK没有'CURLFile'类.任何人都可以帮助我使用新的SDK代码'将照片发布到用户时间线'吗？

提前致谢..