php curl yield get协成请求

public  function _curl($url,$params)
{
    $url = "{$url}?" . http_build_query($params);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
    curl_setopt($ch, CURLOPT_TIMEOUT, 30);
    $result = curl_exec($ch);
    curl_close($ch);

    $orderPayInfo = json_decode($result, true);
   
        foreach ($orderPayInfo['data']['data'] as $v) {
            yield $v;
        }

}

 $resData = $model->_curl($url, $curlParams);
//var_dump($resData) ;
        $orderPayInfoSum = 0;//平台价值总额
        $orderPayInfoCount = 0;//平台订单总额

if($resData->valid()){

　　foreach ($resData as $v)
        {
            $orderPayInfoSum += $v['payment'];
            $orderPayInfoCount++ ;

        }

}else{
    echo 'aa';
}