date_default_timezone_set('Asia/Shanghai');
        $c = new TopClient;
        $c->appkey = 'xx1223xxx';
        $c->secretKey = 'xxxxxxx5d9bdxxxx2e2b737c3xxxxxx3d';


        $req = new TbkItemGetRequest;
        $req->setFields("num_iid,title,pict_url,small_images,reserve_price,zk_final_price,user_type,provcity,item_url,seller_id,volume,nick");
        $req->setQ("手機");
        $req->setCat("1512");
        $req->setItemloc("杭州");
        $req->setSort("_des");
        $req->setIsTmall("false");
        $req->setIsOverseas("false");
        $req->setStartPrice("1");
        $req->setEndPrice("100");
        $req->setStartTkRate("1");
        $req->setEndTkRate("123");
        $req->setPlatform("1");
        $req->setPageNo("1");
        $req->setPageSize("3");
        $resp = $c->execute($req);
        $jsonStr = json_encode($resp);                  //先將SimpleXMLElement Object轉字符串
        $jsonArray = json_decode($jsonStr, true);       //再轉json對象
        return $jsonArray;