1# LanguageCode 2 3- `v::languageCode()` 4 5Validates a language code based on ISO 639: 6 7```php 8v::languageCode()->validate('pt'); // true 9v::languageCode()->validate('en'); // true 10v::languageCode()->validate('it'); // true 11v::languageCode('alpha-3')->validate('ita'); // true 12v::languageCode('alpha-3')->validate('eng'); // true 13``` 14 15You can choose between alpha-2 and alpha-3, alpha-2 is set by default. 16 17*** 18See also: 19 20 * [CountryCode](CountryCode.md)