# Bank - `v::bank(string $countryCode)` Validates a bank. ```php v::bank("de")->validate("70169464"); // true v::bank("de")->validate("12345"); // false ``` These country codes are supported: * "de" (Germany) - You must add `"malkusch/bav": "~1.0"` to your `require` property on composer.json file. *** See also: * [BankAccount](BankAccount.md) * [Bic](Bic.md) * [CreditCard](CreditCard.md) * [IdentityCard](IdentityCard.md)