从 PHP 中的当前请求中获取 http 标头
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Get the http headers from current request in PHP
提问by Justin
Is it possible to get the http headers of the current request with PHP? I am notusing Apache as the web-server, but using nginx.
是否可以使用 PHP 获取当前请求的 http 标头？我没有使用 Apache 作为网络服务器，而是使用 nginx。
I tried using getallheaders()but I am getting Call to undefined function getallheaders().
我尝试使用，getallheaders()但我得到Call to undefined function getallheaders().
回答by Layke
Taken from the documentation someone wrote a comment...
从文档中有人写了一条评论......
if (!function_exists('getallheaders'))
{
function getallheaders()
{
$headers = array ();
foreach ($_SERVER as $name => $value)
{
if (substr($name, 0, 5) == 'HTTP_')
{
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
}
}
return $headers;
}
}
回答by JanDesch
Improved @Layke his function, making it a bit more secure to use it:
改进了@Layke 的功能，使其使用起来更加安全：
if (!function_exists('getallheaders')) {
function getallheaders()
{
if (!is_array($_SERVER)) {
return array();
}
$headers = array();
foreach ($_SERVER as $name => $value) {
if (substr($name, 0, 5) == 'HTTP_') {
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
}
}
return $headers;
}
}
(wished I could just add this as a comment to his answer but still building on that reputation thingy -- one of my first replies)
（希望我可以将其作为评论添加到他的回答中，但仍然建立在声誉之上——我的第一个回复之一）
回答by RafaSashi
Combined getallheaders() + apache_request_headers() for nginx
nginx 的组合 getallheaders() + apache_request_headers()
function get_nginx_headers($function_name='getallheaders'){
$all_headers=array();
if(function_exists($function_name)){
$all_headers=$function_name();
}
else{
foreach($_SERVER as $name => $value){
if(substr($name,0,5)=='HTTP_'){
$name=substr($name,5);
$name=str_replace('_',' ',$name);
$name=strtolower($name);
$name=ucwords($name);
$name=str_replace(' ', '-', $name);
$all_headers[$name] = $value;
}
elseif($function_name=='apache_request_headers'){
$all_headers[$name] = $value;
}
}
}
return $all_headers;
}
回答by Chris Wiegman
You can upgrade your server to PHP 5.4 thereby giving you access to getallheaders()via fastcgi or simply parse what you need out of $_SERVER with a foreachloop and a little regex.
您可以将您的服务器升级到 PHP 5.4，从而使您可以通过 fastcgi访问getallheaders()或者简单地使用foreach循环和一些正则表达式从 $_SERVER 中解析您需要的内容。
回答by Geo Salameh
This issue was finally addressed in PHP 7.3.0, check release notes.
这个问题最终在 PHP 7.3.0 中得到解决，请查看发行说明。
Fixed bug #62596(getallheaders() missing with PHP-FPM).
修复了错误#62596（PHP-FPM 缺少 getallheaders()）。
回答by Volomike
This should work:
这应该有效：
<?php
print_r(
array_intersect_key(
$_SERVER,
array_flip(
preg_grep(
'/^HTTP_/',
array_keys($_SERVER),
0
)
)
)
);
