respect-validation/docs/LanguageCode.md
Henrique Moody 2a2e1d577e
Change how documentation of rules are presented
Rules are not always used from the alias `v`, neither called staticaly.
2017-03-27 17:26:21 +02:00

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# LanguageCode
- `LanguageCode()`
Validates a language code based on ISO 639:
```php
v::languageCode()->validate('pt'); // true
v::languageCode()->validate('en'); // true
v::languageCode()->validate('it'); // true
v::languageCode('alpha-3')->validate('ita'); // true
v::languageCode('alpha-3')->validate('eng'); // true
```
You can choose between alpha-2 and alpha-3, alpha-2 is set by default.
***
See also:
* [CountryCode](CountryCode.md)