Method getCombinationsDataByKey

public static function getCombinationsDataByKey($productKey)
{
    $db = Factory::getDBO();
    $query = 'SELECT product_id, product_key, stock, price, sku, ean, image' . ' FROM #__phocacart_product_stock' . ' WHERE product_key = ' . $db->quote($productKey) . ' ORDER BY product_key' . ' LIMIT 1';
    $db->setQuery($query);
    $data = $db->loadAssoc();
    return $data;
}