Metro_Sitemap::get_sitemap_post_id PHP Method

    public static function get_sitemap_post_id($year, $month, $day)
    {
        $sitemap_args = array('year' => $year, 'monthnum' => $month, 'day' => $day, 'orderby' => 'ID', 'order' => 'ASC', 'posts_per_page' => 1, 'fields' => 'ids', 'post_type' => self::SITEMAP_CPT, 'no_found_rows' => true, 'update_term_cache' => false, 'suppress_filters' => false);
        $sitemap_query = get_posts($sitemap_args);
        if (!empty($sitemap_query)) {
            return $sitemap_query[0];
        }
        return false;
    }