Kohana has a fairly simple and easy to use i18n system. Kohana has a __() function to do your translations for you. This function is only meant for small sections of text, not entire paragraphs or pages of translated text.
To echo a translated string:
To change the displayed language:
To define the language file for the above language change, create a
i18n/en.php that contains:
return array ( 'username' => 'Username:', );