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PHP手册提供了现成的函数：
getallheaders
(PHP 4,PHP 5)
getallheaders — Fetch all HTTP request headers
说明
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.
返回值
An associative array of all the HTTP headers in the current request,orFALSE on failure.
Example #1 getallheaders() example
<div class="codetitle"><a style="CURSOR: pointer" data="60076" class="copybut" id="copybut60076" onclick="doCopy('code60076')"> 代码如下:<div class="codebody" id="code60076">
<?php
foreach (getallheaders() as $name => $value) {
echo "$name: $valuen";
}
?>
不过这个函数只能在apache环境下使用，iis或者nginx并不支持，可以通过自定义函数实现
<div class="codetitle"><a style="CURSOR: pointer" data="51790" class="copybut" id="copybut51790" onclick="doCopy('code51790')"> 代码如下:<div class="codebody" id="code51790">
<?php
if (!function_exists('getallheaders'))
{
function getallheaders()
{
foreach ($SERVER as $name => $value)
{
if (substr($name,5) == 'HTTP')
{
$headers[str_replace(' ','-',ucwords(strtolower(strreplace('',' ',substr($name,5)))))] = $value;
}
}
return $headers;
}
}
?>
好了，看看都打印出了啥吧
<div class="codetitle"><a style="CURSOR: pointer" data="29764" class="copybut" id="copybut29764" onclick="doCopy('code29764')"> 代码如下:<div class="codebody" id="code29764">
<?php
print_r(getallheaders());
获得结果：
<div class="codetitle"><a style="CURSOR: pointer" data="69285" class="copybut" id="copybut69285" onclick="doCopy('code69285')"> 代码如下:<div class="codebody" id="code69285">
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
)
（编辑：李大同）
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