use TopClient;
use TopClient\request\TbkItemsGetRequest;

$topclient = TopClient::connection();
$req = new TbkItemsGetRequest;
$req->setFields("num_iid,nick,title,price,pic_url");
$req->setKeyword('手机');
$req->setSort("commissionVolume_desc");
$req->setPageNo(1);
$req->setPageSize($limit);
$resp = $topclient->execute($req);
dd($resp);