WordPress at a glance
function is not described

get_tag_feed_link() WP 2.3.0

Retrieves the permalink for a tag feed.

No Hooks.

Return

String. The feed permalink for the given tag.

Usage

get_tag_feed_link( $tag_id, $feed );
$tag_id(int) (required)
Tag ID.
$feed(string)
Feed type. Possible values include 'rss2', 'atom'.
Default: value of get_default_feed()

Changelog

Since 2.3.0 Introduced.

Code of get_tag_feed_link() WP 5.7.2

<?php
function get_tag_feed_link( $tag_id, $feed = '' ) {
	return get_term_feed_link( $tag_id, 'post_tag', $feed );
}