Resident permit problem

My so is currently in Shanghai visit his girlfriend, he has been offered an internship in Shanghai and was going to register at a language school in the evenings. The company has told him he needs to get a student visa to get his residents papers but he has now been told the evening school is not acceptable and it must be a university course to get the required papaers, yet there are no part time uni courses that would allow him to work as well.