WordPress Version: 5.5
/**
* Retrieves the feed link for a given author.
*
* Returns a link to the feed for all posts by a given author. A specific feed
* can be requested or left blank to get the default feed.
*
* @since 2.5.0
*
* @param int $author_id Author ID.
* @param string $feed Optional. Feed type. Possible values include 'rss2', 'atom'.
* Default is the value of get_default_feed().
* @return string Link to the feed for the author specified by $author_id.
*/
function get_author_feed_link($author_id, $feed = '')
{
$author_id = (int) $author_id;
$permalink_structure = get_option('permalink_structure');
if (empty($feed)) {
$feed = get_default_feed();
}
if (!$permalink_structure) {
$link = home_url("?feed={$feed}&author=" . $author_id);
} else {
$link = get_author_posts_url($author_id);
if (get_default_feed() == $feed) {
$feed_link = 'feed';
} else {
$feed_link = "feed/{$feed}";
}
$link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
}
/**
* Filters the feed link for a given author.
*
* @since 1.5.1
*
* @param string $link The author feed link.
* @param string $feed Feed type. Possible values include 'rss2', 'atom'.
*/
$link = apply_filters('author_feed_link', $link, $feed);
return $link;
}