AbcAeffchen\SepaUtilities\SepaUtilities::checkActiveOrHistoricCurrencyCode
Checks if the currency code has a valid format. Also if it has a valid format it has not to exist.
If it has a valid format it will also be changed to upper case only.
Signature
private function checkActiveOrHistoricCurrencyCode(string
$ccy )
Parameters
$ccy
— string
Returns
- string|false
- The valid input (in upper case only) or false if it is not valid.