getLicenses(); if (isset($licenses[$index])) { return $licenses[$index]; } return null; } /** * Get the entry licenses * * @return array */ public function getLicenses() { $name = 'licenses'; if (array_key_exists($name, $this->data)) { return $this->data[$name]; } $licenses = array(); $list = $this->xpath->evaluate('channel/cc:license'); if ($list->length) { foreach ($list as $license) { $licenses[] = $license->nodeValue; } $licenses = array_unique($licenses); } $this->data[$name] = $licenses; return $this->data[$name]; } /** * Register Creative Commons namespaces * * @return void */ protected function registerNamespaces() { $this->xpath->registerNamespace('cc', 'http://backend.userland.com/creativeCommonsRssModule'); } }