<?php array (
'langcode' => 'ar',
'op' => 'Add language',
'form_build_id' => 'form-AgcSGyiUSCNWSfLo4zv4QZyWEYNGI6dPAR3GEWahyeo',
'form_token' => 'G7rV4HCItaGo6SmS0OdGg-LK7RHFc5UFp3ApsBHj0Ig',
'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.