Apparently, it's not impossible to change from a student visa to another visa ( like a spouse)....
BUT that's if he is still single. In this instance she doesn't need to leave the UK...the switch ca be done while she is here..
You say she's divorced?? well as you should know "divorce" isn't a thing that happens in the philippines, it's annulment...be sure of her true status.
Sorry, I hope I make sense. I've had a few rows tonight with my GF, and I've been out to a friends on the sauce![]()