1<?php
2
3if (!function_exists('getallheaders')) {
4
5    /**
6     * Get all HTTP header key/values as an associative array for the current request.
7     *
8     * @return string[string] The HTTP header key/value pairs.
9     */
10    function getallheaders()
11    {
12        $headers = array();
13
14        $copy_server = array(
15            'CONTENT_TYPE'   => 'Content-Type',
16            'CONTENT_LENGTH' => 'Content-Length',
17            'CONTENT_MD5'    => 'Content-Md5',
18        );
19
20        foreach ($_SERVER as $key => $value) {
21            if (substr($key, 0, 5) === 'HTTP_') {
22                $key = substr($key, 5);
23                if (!isset($copy_server[$key]) || !isset($_SERVER[$key])) {
24                    $key = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', $key))));
25                    $headers[$key] = $value;
26                }
27            } elseif (isset($copy_server[$key])) {
28                $headers[$copy_server[$key]] = $value;
29            }
30        }
31
32        if (!isset($headers['Authorization'])) {
33            if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION'])) {
34                $headers['Authorization'] = $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
35            } elseif (isset($_SERVER['PHP_AUTH_USER'])) {
36                $basic_pass = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : '';
37                $headers['Authorization'] = 'Basic ' . base64_encode($_SERVER['PHP_AUTH_USER'] . ':' . $basic_pass);
38            } elseif (isset($_SERVER['PHP_AUTH_DIGEST'])) {
39                $headers['Authorization'] = $_SERVER['PHP_AUTH_DIGEST'];
40            }
41        }
42
43        return $headers;
44    }
45
46}
47