public static function getWishlistItemById($id) {
        global $wpdb, $usces_gp;

        if (empty(self::getMemberId())) {
            return [];
        }

        $table = Master::getWishlistTableName();
        $res = $wpdb->get_row(
            $wpdb->prepare("SELECT * FROM {$table} WHERE mem_id = %d AND id = %d", self::getMemberId(), $id),
            ARRAY_A
        );

        if ($res === null) {
            return [];
        }

        $usces_gp = 0;
        $row = self::buildWishlistRow($res);
        if ($row['isgptekiyo'] === true) {
            $usces_gp = 1;
        }

        return $row;
    }