Translate your PHPBB website!
1- Download the application: https://www.phpbb.com/customise/db/download/129716
2- Add the files to your web server: Using your favorite ftp client, upload the translate folder to the /ext of your PHPBB board.
3- Get the Translate code: Open up a new browser window and, if you haven't already, sign up for an account at Translate.com (or just log in!). Then click 'Website Localizer' on the left, followed by 'Add Website' to get started:
Add your domain name, select your site source language as well as all of the languages you want to translate into and click next:
Copy the code snippet, which your page will need for the translation (yours will have an actual key rather than just "my-key"):
4- Insert the Website Translator code into your app: In your PHPBB admin panel click on the 'General' tab at the top. On the left side click on 'Board Settings'. Paste your key from above into the 'Website Translator ID' box listed on this Page.
5- Enable the Plugin: Back in the Admin Control panel at the top, click on 'Customize'. On the leftside of the screen click on 'Manage extensions'. You should now see "Translate.com Website Translator Extension" To the right of that click on enable. The widget should now be enabled. You can go to your website and verify that it is showing.