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function is not described

WP_REST_Response::add_links() public WP 4.4.0

Adds multiple links to the response.

Link data should be an associative array with link relation as the key. The value can either be an associative array of link attributes (including href with the URL for the response), or a list of these associative arrays.

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

No Hooks.

Return

Null. Nothing.

Usage

$WP_REST_Response = new WP_REST_Response();
$WP_REST_Response->add_links( $links );
$links(array) (required)
Map of link relation to list of links.

Changelog

Since 4.4.0 Introduced.

Code of WP_REST_Response::add_links() WP 5.5.1

<?php
public function add_links( $links ) {
	foreach ( $links as $rel => $set ) {
		// If it's a single link, wrap with an array for consistent handling.
		if ( isset( $set['href'] ) ) {
			$set = array( $set );
		}

		foreach ( $set as $attributes ) {
			$this->add_link( $rel, $attributes['href'], $attributes );
		}
	}
}