Fetch all HTTP request headers

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Apache Functions
PHP Manual

# apache_request_headers

(PHP 4 >= 4.3.0, PHP 5)

apache_request_headers — Fetch all HTTP request headers

### Description

array apache_request_headers ( void )

Fetches all HTTP request headers from the current request.

### Return Values

An associative array of all the HTTP headers in the current request, or `FALSE` on failure.

### Changelog

Version | Description
--- | ---
5.5.7 | This function became available in the CLI server.
5.4.0 | This function became available under FastCGI. Previously, it was supported only when PHP was installed as an Apache module.
4.3.3 | As of PHP 4.3.3 you can use this function with the NSAPI server module in Netscape/iPlanet/SunONE webservers, too.

### Examples

Example #1 apache_request_headers() example

`<?php
$headers = apache_request_headers();
foreach ($headers as $header => $value) {
echo "$header: $value <br />\n";
}
?>`

The above example will output something similar to:

    Accept: */*
    Accept-Language: en-us
    Accept-Encoding: gzip, deflate
    User-Agent: Mozilla/4.0
    Host: www.example.com
    Connection: Keep-Alive

### Notes

> Note:

> You can also get at the value of the common CGI variables by reading them from the environment, which works whether or not you are using PHP as an Apache module. Use phpinfo() to see a list of all of the available environment variables.

### See Also

- apache_response_headers() - Fetch all HTTP response headers

apache_note
apache_reset_timeout
Apache Functions
PHP Manual