So here's my situation. I have a website at http://www.mysite.com. I want to move my WordPress over to a new server, with a new domain name that I can use as a test server. The reason is because I'm about to change themes on a pretty complex website.
My question is, when you change servers, you go into the admin panel and enter the new URL before moving. However, I'm not going to be moving, just copying. How do I change the URL of the site, without having to go into my admin panel (which would mess up my real website, since I'm not moving)