Localization - Hello World Example
Instead of "Hello World", use t("Hello World").

Using the Localization client module, you can add the translation of that string in any language you want.


  This module helps you fix translations on your site as you see the issues. Just by navigating around your pages, you'll be able to fix translations and fill in missing ones using the on-page translation editor. At the same time, if configured properly, the module also submits your translations back to the community, to localize.drupal.org or any other localization server.