change it back !
Presume you now can’t get access?
If so, then you’ll need to get phpmyadmon access – your host provider should be able to tell you how
Then you’ll need to change the settings in the database
find the sql tab, and click it, then paste the following into it
UPDATE wp_options SET option_value = ‘http://www.mysite.com’ WHERE option_name IN (‘siteurl’, ‘home’)
where the ‘http://www.mysite.com’ is the url you want to change it back to
Check out the Codex:
Changing The Site URL
Moving WordPress
If you have moved changed your WordPress install directory name from “wordpress” to “blog,” you’ll need to update
siteurl to be http://www.mysite/blog
and
home to be whatever you want the home page URL to be, probably either http://www.mysite/blog or http://www.mysite.
I generally use the wp-login.php trick (see Moving WordPress) so I don’t have to mess with the database. But either way is fine.
