// ensure $currency is a valid currency code
// for backwards-compatibility, also accept one space instead of a currency
if ($currency != ' ' && !array_key_exists($currency, self::$_currencySymbols)) {
throw new CRM_Core_Exception("Invalid currency \"{$currency}\"");
}
// ensure $currency is a valid currency code
// for backwards-compatibility, also accept one space instead of a currency
if ($currency != ' ' && !array_key_exists($currency, self::$_currencySymbols)) {
throw new CRM_Core_Exception("Invalid currency \"{$currency}\"");
}