WP_REST_Request::add_header( string $key, string $value )

Appends a header value for the given header.

Parameters

$key

(string) (Required) Header name.

$value

(string) (Required) Header value, or list of values.

Source

File: wp-includes/rest-api/class-wp-rest-request.php

public function add_header( $key, $value ) {
		$key   = $this->canonicalize_header_name( $key );
		$value = (array) $value;

		if ( ! isset( $this->headers[ $key ] ) ) {
			$this->headers[ $key ] = array();
		}

		$this->headers[ $key ] = array_merge( $this->headers[ $key ], $value );
	}

Changelog

Version Description
4.4.0 Introduced.

© 2003–2021 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_rest_request/add_header