apache_response_headers

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

apache_response_headers — 获得全部 HTTP 响应头信息

说明

array apache_response_headers ( void )

获得全部 HTTP 响应头信息。

返回值

成功时返回包含全部 Apache 响应头信息的数组，或者在失败时返回 FALSE .

更新日志

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。

范例

Example #1 apache_response_headers() 示例

  <?php
print_r ( apache_response_headers ());
 ?>

以上例程的输出类似于：

Array
(
    [Accept-Ranges] => bytes
    [X-Powered-By] => PHP/4.3.8
)

参见

apache_request_headers() - 获取全部 HTTP 请求头信息
headers_sent() - Checks if or where headers have been sent
headers_list() - Returns a list of response headers sent (or ready to send)

用户评论:

[#1] php at mailplus dot pl [2011-02-18 01:11:56]

I get "Call to undefined function apache_response_headers()" when using php-cli so be aware of lack of this function CLI.
In my case I was trying to test my app via phpunit (command line tool of course ;)) if it sends proper headers.

[#2] Isaac Z dot Schlueter i at foohack dot com [2009-05-28 08:57:41]

This function doesn't exist on lighttpd, so I wrote this little function to emulate it:

<?php if (!function_exists('apache_response_headers')) { function apache_response_headers () { $arh = array(); $headers = headers_list(); foreach ($headers as $header) { $header = explode(":", $header); $arh[array_shift($header)] = trim(implode(":", $header)); } return $arh; } } ?>

[#3] Daniel Lorch [2007-05-24 09:53:51]

Addendum: The code

<pre>
<?php   print_r(apache_request_headers()); ?>
</pre>

gives me

Array
(
    [X-Powered-By] => PHP/5.1.6
)

But the code
<pre>
<?php   ob_end_flush();   print_r(apache_request_headers()); ?>
</pre>

Results in

Array
(
    [Content-Location] => phpinfo.de.php
    [Vary] => negotiate
    [TCN] => choice
    [X-Powered-By] => PHP/5.1.6
    [Keep-Alive] => timeout=15, max=96
    [Connection] => Keep-Alive
    [Transfer-Encoding] => chunked
    [Content-Type] => text/html
    [Content-Language] => de
)

[#4] Daniel Lorch [2007-05-24 09:46:25]

I can confirm athlet's experience with apache_response_headers() using PHP 5.1.6. When the resulting array is empty or only contains "X-Powered-By" instead of the full list of values, you'll need to switch off output_buffering _before_ the script has been executed, for example with the following directive in .htaccess:

php_value "output_buffering" "0"

it _doesn't_ work when you do a you ini_set('output_buffering', 0); in your script. Not sure why that is so - it is not a bug in PHP, but probably has to do with how Apache populates the request values.

[#5] athlet [2006-02-01 09:37:59]

For apache_response_headers() working good, you need to set up output_buffering = Off in php.ini

[#6] orange [2005-09-05 08:17:17]

If apache_response_headers() returns an empty array, try calling flush() before and it'll get filled.