I have two wix sites I am creating at the moment. They are practically the same site, but one has branding for Montana, and another has branding for Idaho. The client wants to use the same URL, for example: beesandtrees.com, but have one be beesandtrees.com/montana and the other beesandtrees.com/idaho. Is this possible? And if so how do I go about doing it, since they are two different sites at the moment?
Could I also use an index.php page, to allow users to select whether they are going to Montana or Idaho side of things?
If you are looking to do something similar as to described above, then you would need to have at least two sites through Wix as you have currently got two sites set up and you would simply have a landing page for your main website and then either have a choice for the users which takes them off to either website for Idaho or Montana, or you can look at doing it through code with Wix Window and one of its functions as shown here below depending on the users location.
https://www.wix.com/corvid/reference/wix-window.html#getCurrentGeolocation
Otherwise, you can combine them into one site and have all the Idaho pages with the Idaho in your url and the Montana pages with the Montana in your url, .obviously you would have to make sure that all your links etc are all setup to be directed to the appropriately branded page.