How to Configure WordPress to work with a different URL
If you move a WordPress Installation from a test site to a live new URL site, you will need to do some changes in the WordPress Setup.
I have seen many different options mentioned on doing this, and it begins to look complicated the more I read, BUT, I need to do this soon, so I want to check the best and easiest option to try first.
One site www.siteground.com says:
This means that if you simply move your files and database it will not work properly.
The URL settings are located in the application database. Fortunately, direct database modification can be avoided by using a nice function provided by the WordPress developers named “update_option”.
Simply add these lines to the functions.php file of your theme:
Then simply load your site from its new location – it should work just fine.
Note that after you run your site once and you make sure it works you should delete those lines from your functions.php file. The settings are already stored in your database and should not be modified each time your site is loaded.
I may try that first.
If that does not work,
I will look at www.inmotionhosting.com as they show a very detailed, but complex system to do this.