/** * URL cache failure. * * @param string $url * @param array $to_cache */ protected function url_cache_failure($url, &$to_cache) { $full = $this->as3cf->remove_size_from_filename($url); $failure = array('timestamp' => time()); $to_cache[$full] = $failure; if ($full !== $url) { $to_cache[$url] = $failure; } }