Possible duplicates:What is the best way to translate a translation system to a php website? PHP localization issue
Like my site, which I work on, there will be both English and French. I already have the language in the file. Therefore, I was not sure how the files / translation systems of the site would be executed.
Why not use the google translation api instead of doing it manually. You get support for all languages. http://code.google.com/apis/ajax/playground/?exp=image#translate