@Jake Hutch that is correct. It is a combination of Orange County and the city of Orlando. There are some areas grandfathered in and allowable, but the possibility of this changing at a whim or from pressure from outside sources isn't worth the risk, IMO.
On the other hand, the area around Disney is called Four Corners as Orange, Polk, Lake and Osceola counties meet. The other 3 do allow STR and that is where you will find the bulk of the resort communities and others that allow it. HOA's still hold more power than anyone in Florida and can change the rules if they decide. So either buy in a community that is deeded and zoned specifically for STR (Championsgate, Solara, Solterra, Storey Lake, Windsor Hills and several other large ones) or buy in a neighboring community with less amenities, but it will give you more options to go long term rental in the future and have better options when selling. You will be limited on size, occupancy rates/nightly rates and number of beds and proximity to the parks, but attract smaller families that may take better care of the property.
There are many variables to consider when buying here and depending on how you will use the property (will you and your family use it part time, who is your target audience..large families, snowbirds, vacationers from around the globe) etc will directly impact your cash flow.