public function set_feed_url($url)
{
$this->multifeed_url = array();
if (is_array($url)) {
foreach ($url as $value) {
$this->multifeed_url[] = $this->registry->call('Misc', 'fix_protocol', array($value, 1));
}
} else {
$this->feed_url = $this->registry->call('Misc', 'fix_protocol', array($url, 1));
$this->permanent_url = $this->feed_url;
}
}