PHP获取http头信息和CI中获取HTTP头信息的方法

2022-11-05 12:27:41

CI中获取HTTP头信息的方法：

$this->input->request_headers()

在不支持apache_request_headers()的非Apache环境非常有用。返回请求头（header）数组。

$headers = $this->input->request_headers();

----------------------------------------------------------------------------------------------

获取http请求的头信息。

PHP手册提供了现成的函数：

(PHP 4, PHP 5)

getallheaders — Fetch all HTTP request headers

array getallheaders ( void )

Fetches all HTTP headers from the current request.

This function is an alias for apache_request_headers(). Please read theapache_request_headers() documentation for more information on how this function works.

An associative array of all the HTTP headers in the current request, orFALSE on failure.

Example #1 getallheaders() example

不过这个函数只能在apache环境下使用，iis或者nginx并不支持，可以通过自定义函数实现

<?php
<span class="html">if (!function_exists('getallheaders'))
{
function getallheaders()
{
foreach ($_SERVER as $name => $value)
{
if (substr($name, 0, 5) == 'HTTP_')
{
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
}
}
return $headers;
}
}</span>
?>

好了，看看都打印出了啥吧

获得结果：

Array
(
[Accept] => */*
[Accept-Language] => zh-cn
[Accept-Encoding] => gzip, deflate
[User-Agent] => Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727)
[Host] => localhost
[Connection] => Keep-Alive
)