PHP流-获取所有HTTP请求标头

Question

I do a post request with the following code:

<?php
$url = 'http://www.example.com/';
$data = array('first-post-data' => 'data', 'second-post-data' => 'another-data');

$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
        'method'  => 'POST',
        'content' => http_build_query($data),
        'user_agent' => 'Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Firefox/24.0',

        // corporate proxy thing ...
        'proxy' => 'proxy-ip:proxy-port',
        'request_fulluri' => true,
    ),
);
$context  = stream_context_create($options);
$file = fopen($url, 'r', null, $context);
$content = stream_get_contents($file);

// Response headers:
echo '<pre>' . print_r(stream_get_meta_data($file), true) . '</pre>';

fclose($file);
echo $content;

I can easily get response headers from my handmade HTTP request with the function stream_get_meta_data. Is it possible to get all request headers ? Are there any built-in function?

EDIT

I got the raw response headers with tcpflow: https://superuser.com/a/23187 Thanks!

Answer 1

http://php.net/manual/en/function.getallheaders.php

Get all headers should do the trick for you - note though it is dependent on how certain php versions and methods of running php from your web server.

eg

PHP 5.4.0    This function became available under FastCGI. Previously, it was supported only when PHP was installed as an Apache module.

More Details are included on the link above.