Every time a new system is around the corner, your old controllers rarely work. PlayStation 2 to PlayStation 3 had no controller ports to even connect a PS2 controller but PS3 might be able to use PlayStation 4 controllers.
In a video uploaded below, a YouTube user was able to play Urban Trial Freestyle with ease, as long as it’s connected to the PS3 via USB. Check it out below:
Unfortunately, he tried to play FIFA 14 but it didn’t work out that well. Not to mention that using the controller wirelessly makes the compatibility not work correctly. Currently, PlayStation 3 controllers are not supported by the PlayStation 4.