Fetch all HTTP response headers

# apache_response_headers

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

apache_response_headers — Fetch all HTTP response headers

### Description

apache_response_headers(): array

Fetch all HTTP response headers. Works in the Apache, FastCGI, CLI, and FPM webservers.

### Parameters

This function has no parameters.

### Return Values

An array of all Apache response headers on success.

### 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)

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