PHP curl 获取当前请求 header 信息

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 admin  2023-05-29 21:45:08 

工作中经常需要对接第三方 api ，排查问题的时候需要提供请求详细参数信息。
有时候可能是认证头 Authorization 有误，如果不一并记录获取提供检查，可能会走很多弯路都不能发现问题所在。

正常 curl 获取响应结果

$url = 'url/xx/server';

$data = ['param' => 'test'];

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_HTTPHEADER, array("content-type:application/json"));

curl_setopt($ch, CURLOPT_POST, true);

curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

$response = curl_exec($ch); // 获取响应内容

curl_close($ch);

这样只能获取得到 api 响应内容 body，如果出错了或者是返回非期望内容。需要联系提供方排查问题，我们可以用 php 的 curl_getinfo 函数获取更详细的信息。

curl_getinfo() 获取响应详情

...

$response = curl_exec($ch); // 获取响应内容

$info = curl_getinfo($ch);

$error = curl_error($ch);

curl_close($ch);

利用 curl_getinfo() 获取响应详情，可以获得以下内容结构：

$info = Array

(

    [url] => xxx.kangxuanpeng.com/xx/server

    [content_type] => application/json;charset=UTF-8

    [http_code] => 200

    [header_size] => 196

    [request_size] => 144

    [filetime] => -1

    [ssl_verify_result] => 0

    [redirect_count] => 0

    [total_time] => 0.266

    [namelookup_time] => 0.063

    [connect_time] => 0.188

    [pretransfer_time] => 0.188

    [size_upload] => 8

    [size_download] => 33

    [speed_download] => 124

    [speed_upload] => 30

    [download_content_length] => -1

    [upload_content_length] => 8

    [starttransfer_time] => 0.266

    [redirect_time] => 0

    [redirect_url] =>

    [primary_ip] => 161.117.85.239

    [certinfo] => Array

        (

        )

    [primary_port] => 80

    [local_ip] => 192.168.15.86

    [local_port] => 61451

)

curl_error() 可以获取 http 错误信息

获取发送的请求 header 信息
需要在 curl_exec() 之前设置

//至关重要，CURLINFO_HEADER_OUT选项可以拿到请求头信息

curl_setopt($ch, CURLINFO_HEADER_OUT, TRUE);

$response = curl_exec($ch);

$info = curl_getinfo($ch);

$error = curl_error($ch);

curl_close($ch);

这样执行后得到的 info 如下，其中 request_header 为请求的 header 信息：

$info = Array

(

    [url] => url/xx/server

    [content_type] => application/json;charset=UTF-8

    [http_code] => 200

    [header_size] => 196

    [request_size] => 144

    [filetime] => -1

    [ssl_verify_result] => 0

    [redirect_count] => 0

    [total_time] => 0.218

    [namelookup_time] => 0

    [connect_time] => 0.125

    [pretransfer_time] => 0.125

    [size_upload] => 8

    [size_download] => 33

    [speed_download] => 151

    [speed_upload] => 36

    [download_content_length] => -1

    [upload_content_length] => 8

    [starttransfer_time] => 0.218

    [redirect_time] => 0

    [redirect_url] =>

    [primary_ip] => 161.117.85.239

    [certinfo] => Array

        (

        )

    [primary_port] => 80

    [local_ip] => 192.168.15.86

    [local_port] => 61756

    [request_header] => POST /xx/server HTTP/1.1

Host: xxx.kangxuanpeng.com

Accept: */*

content-type:application/json

Content-Length: 8

)