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apache_request_headers	apache_setenv

Apache Functions	Last updated: Mon, 26 Oct 2026

apache_response_headers

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

apache_response_headers — Fetch all HTTP response headers

Description

function apache_response_headers(): array

Fetch all HTTP response headers. Works in the Apache, LiteSpeed, 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)

apache_request_headers	apache_setenv

Apache Functions	Last updated: Mon, 26 Oct 2026