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)