Single entry chinese visa from philippines

Iam a phil.passport holder and applied a single entry chinese visa in the phil.my destination is GZ china for 4 days .it is my arrival and departre. During my stay in GZ i want to visit hongkong and macua .after visiting hongkong and macua iwill go back to GZ for my departure in going back to the phil.is the chinese immigration allow me to visit hongkong and macua and then return to GZ for my departure in going back to philippines.