AS3CF_S3_To_Local::get_attachment_ids_from_urls PHP Method

    protected function get_attachment_ids_from_urls($urls)
    {
        $results = array();
        if (empty($urls)) {
            return $results;
        }
        if (!is_array($urls)) {
            $urls = array($urls);
        }
        foreach ($urls as $url) {
            $results[$url] = $this->get_attachment_id_from_url($url);
        }
        return $results;
    }