关于Post时CURL奇怪的问题，无响应。

紫色田园 2019-10-24 07:20:51

问题很奇怪，被请求端能收到请求过来的参数。也返回了一个Json数据。可是很奇怪，发送请求却收不到这个Json.
代码如下：

    

    public function sendHttpData($url='',$params=[],$method = 'POST', $options = [])

    {



        $method = strtoupper($method);

        $protocol = substr($url, 0, 5);

        $query_string = is_array($params) ? http_build_query($params) : $params;



        $ch = curl_init();

        $defaults = [];

        if ('GET' == $method)

        {

            $geturl = $query_string ? $url . (stripos($url, "?") !== FALSE ? "&" : "?") . $query_string : $url;

            $defaults[CURLOPT_URL] = $geturl;

        }

        else

        {

            $defaults[CURLOPT_URL] = $url;

            if ($method == 'POST')

            {

                $defaults[CURLOPT_POST] = 1;

            }

            else

            {

                $defaults[CURLOPT_CUSTOMREQUEST] = $method;

            }

            $defaults[CURLOPT_POSTFIELDS] = $query_string;

        }



        $defaults[CURLOPT_HEADER] = TRUE;

        $defaults[CURLOPT_USERAGENT] = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.98 Safari/537.36";

        $defaults[CURLOPT_FOLLOWLOCATION] = TRUE;

        $defaults[CURLOPT_RETURNTRANSFER] = TRUE;

        $defaults[CURLOPT_CONNECTTIMEOUT] = 3;

        $defaults[CURLOPT_TIMEOUT] = 3;



        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));



        if ('https' == $protocol)

        {

            $defaults[CURLOPT_SSL_VERIFYPEER] = FALSE;

            $defaults[CURLOPT_SSL_VERIFYHOST] = FALSE;

            $defaults[CURLOPT_SSLVERSION] = 3;

        }



        curl_setopt_array($ch, (array) $options + $defaults);



        $ret = curl_exec($ch);

        $err = curl_error($ch);



        if (FALSE === $ret || !empty($err))

        {

            $errno = curl_errno($ch);

            $info = curl_getinfo($ch);

            curl_close($ch);

            return [

                'ret'   => FALSE,

                'errno' => $errno,

                'msg'   => $err,

                'info'  => $info,

            ];



            return ['status'=>FALSE,'message'=>$err,'errno'=>$errno,'info'=>$info];

        }



        list($header,$body) = explode("\r\n\r\n", $ret, 2);



        curl_close($ch);



        $data = json_decode($body,true);



        return $data;

    }

====================================
被请求端返回了一个Json，代码如下：



            echo json_encode(array('code' => 1002, 'message' => 'Incorrect user name or password','data'=>[]));

            die();

========================================

发送端一直得不到响应的Json数据，$ret =false，$err为非空。
按F12查看Response里面，
[errno] => 28
[msg] => Operation timed out after 3000 milliseconds with 0 bytes received
就是超时。查了好久都没查到原因，请各位高手指点一下。先谢过了！
对了，发送端和响应端都是用的Thinkphp5

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