在Twitter上自动更新产品

下面的一段PHP代码，用于实现在zen cart网店后台添加新产品后，自动在twitter上发布关于该产品的信息。
(通常是加入 /admin/includes/modules/update_product.php 这个文件)

// BOF twitter feed
    
    if ($action == 'insert_product')
    {
      $purl = zen_catalog_href_link(FILENAME_PRODUCT_INFO, 'products_id=' . $products_id);
      $tinyPurl = file_get_contents('http://tinyurl.com/api-create.php?url='.$purl);
      function updateStatus($user, $password, $message)
      {
        $url = "http://twitter.com/statuses/update.xml";
        $curl = curl_init($url);
        $data = array('status'=>$message);
        curl_setopt($curl, CURLOPT_USERPWD, $user.':'.$password);
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER,1);
        curl_setopt($curl, CURLOPT_HTTPHEADER, array('Expect:'));
        $result = @curl_exec($curl);
        curl_close($curl);
        return $result;
      }
      $message = STORE_NAME . ' has a new product. ' . $tinyPurl;
      $user = 'YYYYYYYYY';
      $password = 'XXXXXXXXX';
      $result = updateStatus($user, $password, $message);
      $messageStack->add_session($result, 'error');
    }
    // EOF twitter feed