PHP获取http请求的头信息实现步骤
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2022-03-07 15:09:48
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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
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
<?php foreach (getallheaders() as $name => $value) { echo "$name: $value\n"; } ?>
不过这个函数只能在apache环境下使用,iis或者nginx并不支持,可以通过自定义函数实现
<?php if (!function_exists('getallheaders')) { function getallheaders() { foreach ($_SERVER as $name => $value) { if (substr($name, 0, 5) == 'HTTP_') { $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value; } } return $headers; } } ?>
好了,看看都打印出了啥吧
<?php print_r(getallheaders());
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 )
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