I just went out to start my car, and the key turns

It sounds like you ignition switch went out. I had this happen to my wife a few years ago you turn the key the acceseries turn on but nothing else. this will be a trip to the dealer. did you happen to smell something electrical burning the last time you car was working if so it is the starter switch. you will need to take it to the deales an get a ne w switch which will also involve new keys$$$