Получить значение объекта

(
[_currencyConverter:CurrencyDisplay:private] => convertECB Object
(
[document_address] => http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml
[info_address] => http://www.ecb.int/stats/eurofxref/
[supplier] => European Central Bank
)
[_currency_id:CurrencyDisplay:private] => 199
[_symbol:CurrencyDisplay:private] => грн
[_nbDecimal:CurrencyDisplay:private] => 0
[_decimal:CurrencyDisplay:private] => ,
[_thousands:CurrencyDisplay:private] =>
[_positivePos:CurrencyDisplay:private] => {number} {symbol}
[_negativePos:CurrencyDisplay:private] => {sign}{number} {symbol}
[_numeric_code:CurrencyDisplay:private] => 0
[_priceConfig] => Array
(
[basePrice] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[variantModification] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[basePriceVariant] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[basePriceWithTax] => Array
(
[0] => 1
[1] => 0
[2] => 1
)
[discountedPriceWithoutTax] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[discountedPriceWithoutTaxTt] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[salesPrice] => Array
(
[0] => 1
[1] => 0
[2] => 1
)
[salesPriceTt] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[priceWithoutTax] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[priceWithoutTaxTt] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[salesPriceWithDiscount] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[discountAmount] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[discountAmountTt] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[taxAmount] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[taxAmountTt] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
[unitPrice] => Array
(
[0] => 0
[1] => 0
[2] => 0
)
)
[exchangeRateShopper] => 1
[_vendorCurrency] => 199
[_vendorCurrency_code_3] => UAH
[_vendorCurrency_numeric] => 0
)

[_symbol:CurrencyDisplay:private] => грн

$object->getSymbol();