| public static filterAndValidateCurrencyCode ( string $code ) : string | ||
| $code | string | Currency code to filter and validate. |
| return | string | Three letter currency code. |
public static function filterAndValidateCurrencyCode($code)
{
$code = strtoupper(preg_replace('/[^a-zA-Z]/', '', $code));
if (array_key_exists($code, static::getAvailableCurrencies()) === false) {
throw new \InvalidArgumentException('Currency code "' . $code . '" is not a valid ISO 4217 symbol');
}
return $code;
}