WordPress at a glance
function is not described

WP_REST_Request::get_headers() public WP 4.4.0

Retrieves all headers from the request.

{} It's a method of the class: WP_REST_Request{}

No Hooks.

Return

Array. Map of key to value. Key is always lowercase, as per HTTP specification.

Usage

$WP_REST_Request = new WP_REST_Request();
$WP_REST_Request->get_headers();

Changelog

Since 4.4.0 Introduced.

Code of WP_REST_Request::get_headers() WP 5.5.1

<?php
public function get_headers() {
	return $this->headers;
}