从 PHP cURL 响应中获取 Header

Question

我是 PHP 的新手。我试图在发送 php curl POST 请求后从响应中获取 Header 。客户端向服务器发送请求，服务器返回 Header 的响应。这是我发送 POST 请求的方式。

   $client = curl_init($url);  
   curl_setopt($client, CURLOPT_CUSTOMREQUEST, "POST");
   curl_setopt($client, CURLOPT_POSTFIELDS, $data_string);
   curl_setopt($client, CURLOPT_HEADER, 1);
   $response = curl_exec($client);
   var_dump($response);

这是我从浏览器得到的来自服务器的 Header 响应

HTTP/1.1 200 OK 
Date: Wed, 01 Feb 2017 11:40:59 GMT 
Authorization: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJ1c2Vycy9CYW9CaW5oMTEwMiIsIm5hbWUiOiJhZG1pbiIsInBhc3N3b3JkIjoiMTIzNCJ9.kIGghbKQtMowjUZ6g62KirdfDUA_HtmW-wjqc3ROXjc Content-Type: text/html;charset=utf-8 Transfer-Encoding: chunked Server: Jetty(9.3.6.v20151106)

如何从 Header 中提取授权部分？。我需要将其存储在 cookies

Answer 1

它将所有headers转换成一个数组

// create curl resource
$ch = curl_init();

// set url
curl_setopt($ch, CURLOPT_URL, "example.com");

//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
//enable headers
curl_setopt($ch, CURLOPT_HEADER, 1);
//get only headers
curl_setopt($ch, CURLOPT_NOBODY, 1);
// $output contains the output string
$output = curl_exec($ch);

// close curl resource to free up system resources
curl_close($ch);

$headers = [];
$output = rtrim($output);
$data = explode("\n",$output);
$headers['status'] = $data[0];
array_shift($data);

foreach($data as $part){

    //some headers will contain ":" character (Location for example), and the part after ":" will be lost, Thanks to @Emanuele
    $middle = explode(":",$part,2);

    //Supress warning message if $middle[1] does not exist, Thanks to @crayons
    if ( !isset($middle[1]) ) { $middle[1] = null; }

    $headers[trim($middle[0])] = trim($middle[1]);
}

// Print all headers as array
echo "<pre>";
print_r($headers);
echo "</pre>";

Answer 2

您只需将此编码包含在您的 curl 请求中

curl_setopt($curl_exec, CURLOPT_HEADER, true); 
curl_setopt($curl_exec, CURLOPT_NOBODY, true);

执行 curl 后使用 $header_data= curl_getinfo($curl_exec);

然后你得到所有的headers

print_r($header_data);

或使用 shell_exec

echo shell_exec("curl -I http://example.com ");

Answer 3

第一个回答注意代码：

$middle=explode(":",$part);

将产生包含 : 的字符串数据的错误结果，例如：

Sat, 14 Jan 2017 01:10:01 GMT

拆分字段以构建数组的正确代码如下：

$middle=explode(":",$part,2);

Answer 4

只需使用简单的代码将 curl 响应转换为数组。

 $response  = curl_exec($ch);
 $header_data= curl_getinfo($ch);
 print_r($header_data);

从 PHP cURL 响应中获取 Header

Get Header from PHP cURL response

php

curl

header

response