# apache_response_headers

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

apache_response_headers — Fetch all HTTP response headers

### Description

apache_response_headers ( void ) : array

Fetch all HTTP response headers.

### Return Values

An array of all Apache response headers on success 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 when PHP was installed as an Apache module or by the NSAPI server module in Netscape/iPlanet/SunONE webservers.

### Examples

Example #1 apache_response_headers() example

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

The above example will output something similar to:

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

### See Also

- apache_request_headers() - Fetch all HTTP request headers
- headers_sent() - Checks if or where headers have been sent
- headers_list() - Returns a list of response headers sent (or ready to send)