2008 Dodge Durango Question: I cant start my car, battery ok, has gas, no clicking sound, now I'm locked out.

Car drove fine all day, key fob has been giving my some problems, like having to enter through passenger door. Lights come on, dash lights as well, cannot jump off car. When I got out of the car, I tried to re enter and the key will not get me in, nor does the key fob work