Method existsTicket

public static function existsTicket($vendorId, $ticketId, $unitId, $sectionId)
{
    $db = Factory::getDBO();
    $query = ' SELECT ticket_id FROM #__phocacart_cart_multiple' . ' WHERE vendor_id = ' . (int) $vendorId . ' AND ticket_id = ' . (int) $ticketId . ' AND unit_id = ' . (int) $unitId . ' AND section_id = ' . (int) $sectionId;
    $db->setQuery($query);
    $result = $db->loadResult();
    if (isset($result) && (int) $result > 0) {
        return $result;
    }
    return false;
}