curl post提交json数据

感觉问题可能出现在提交数据这，接口正常访问了 也在小商店添加商品了，中文无法显示出正常参数来

public function http_post_data_json($url, $data=[], $timeout = 5)
{
   $jsonStr = json_encode($data);
   $ch      = curl_init();
   curl_setopt($ch, CURLOPT_POST, 1);
   curl_setopt($ch, CURLOPT_URL, $url);
   curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonStr);
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
   curl_setopt($ch, CURLOPT_HTTPHEADER, array(
         'Content-Type: application/json',
      )
   );
   $response = curl_exec($ch);
   $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
   curl_close($ch);

   return $response;
}