新浪短连接接口

　　　　 public function short_linkAction()
        {
            $url = Request::getPost('url');

            $return = array('url'=> $url);

            //新浪短网址
            $new_url = 'http://api.weibo.com/2/short_url/shorten.json?source=3235337692&url_long='.rawurlencode( $url );
            $text = Request::fetch( $new_url );
            $data = json_decode($text, true);
    
            if( isset( $data['urls'] ) )
            {
                $short_url = $data['urls'][0]['url_short'];
                $return['short_url'] = $short_url;
            }

            return $return;
        }