src/Currencies/ISOCurrencies.php
private function getCurrencies()
    {
        if (null === self::$currencies) {
            self::$currencies = $this->loadCurrencies();
        }

        return self::$currencies;
    }
private function getCurrencies()
    {
        if (null === self::$currencies) {
            self::$currencies = $this->loadCurrencies();
        }

        return self::$currencies;
    }
private function getCurrencies ( ) { if ( null === self :: $ currencies ) { self :: $ currencies = $ this -> loadCurrencies ( ) ; } return self :: $ currencies ; }
Returns a map of known currencies indexed by code.

@return array
Returns a map of known currencies indexed by code .