<?php array (
'langcode' => 'fr',
'op' => 'Add language',
'form_build_id' => 'form-jUlXHsjs-ygOBOerFrE7yWpXIg-8IIcFDMuNTzlIOKQ',
'form_token' => 'm6zA_IUFWfxH1rfO1REi7hAS6QrZDQkkTMDnFIhz5do',
'form_id' => 'locale_languages_predefined_form',
)
With multiple languages enabled, interface text can be translated, registered users may select their preferred language, and authors can assign a specific language to content. Download contributed translations from Drupal.org.