Due to the else part.
}else{
$out[$key]=$value;
All server Variables are added to the headers list, and that's not the desired outcome.
(PHP 4, PHP 5, PHP 7)
getallheaders — 获取全部 HTTP 请求头信息
获取当前请求的所有请求头信息。
此函数是 apache_request_headers()的别名。 请阅读 apache_request_headers() 文档获得更多信息。
包含当前请求所有头信息的数组，失败返回
FALSE 。
| 版本 | 说明 |
|---|---|
| 5.5.7 | 此函数可用于 CLI server。 |
| 5.4.0 | 此函数可用于 FastCGI。 此前仅在PHP以 Apache 模块方式运行时支持。 |
| 4.3.3 |
从 PHP 4.3.3 起，也可在 Netscape/iPlanet/SunONE Web 服务器的 NSAPI 服务器模块使用此函数。 |
| 4.3.0 | 被改名而成为 apache_request_headers() 的别名。因为此函数仅适用于 Apache 。 |
Example #1 getallheaders() 示例
<?php
foreach (getallheaders() as $name => $value) {
echo "$name: $value\n";
}
?>
Due to the else part.
}else{
$out[$key]=$value;
All server Variables are added to the headers list, and that's not the desired outcome.
There's a polyfill for this that can be downloaded or installed via composer:
https://github.com/ralouphie/getallheaders
dont forget to add the content_type and content_lenght if your are uploading file:
<?php
function emu_getallheaders() {
foreach ($_SERVER as $name => $value)
{
if (substr($name, 0, 5) == 'HTTP_')
{
$name = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))));
$headers[$name] = $value;
} else if ($name == "CONTENT_TYPE") {
$headers["Content-Type"] = $value;
} else if ($name == "CONTENT_LENGTH") {
$headers["Content-Length"] = $value;
}
}
return $headers;
}
?>
chears magno c. heck
apache_request_headers replicement for nginx
<?php
if (!function_exists('apache_request_headers')) {
function apache_request_headers() {
foreach($_SERVER as $key=>$value) {
if (substr($key,0,5)=="HTTP_") {
$key=str_replace(" ","-",ucwords(strtolower(str_replace("_"," ",substr($key,5)))));
$out[$key]=$value;
}else{
$out[$key]=$value;
}
}
return $out;
}
}
?>
it could be useful if you using nginx instead of apache
<?php
if (!function_exists('getallheaders'))
{
function getallheaders()
{
$headers = [];
foreach ($_SERVER as $name => $value)
{
if (substr($name, 0, 5) == 'HTTP_')
{
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
}
}
return $headers;
}
}
?>
Beware that RFC2616 (HTTP/1.1) defines header fields as case-insensitive entities. Therefore, array keys of getallheaders() should be converted first to lower- or uppercase and processed such.