public static function getPrice() { if (!empty(self::$price_list)) { return self::$price_list; } if (!class_exists('BookproModelPrices')) { require_once JPATH_ADMINISTRATOR . '/components/com_bookpro/models/prices.php'; } $model = new BookproModelPrices(); self::$price_list = $model->getPriceList(); return self::$price_list; }