function fetch_favicon($feed_id, $site_url, $icon_link)
{
if (Config\get('favicons') == 1 && !has_favicon($feed_id)) {
$favicon = new Favicon();
$link = $favicon->find($site_url, $icon_link);
$icon = $favicon->getContent();
$type = $favicon->getType();
if ($icon !== '') {
store_favicon($feed_id, $link, $type, $icon);
}
}
}