Porcelain tile is one of the simplest and easiest flooring materials to clean. It could be easily swept or to vacuum it weekly. You can also clean it with wet sponge or cloth. For tile cleaning, you can use a mixture of white vinegar and water. After applying you let them to get dry.
Porcelain tile is known to be impervious, but it is likely for the surface to get spoiled. You can use a specially made-up cleaning product for porcelain tile. But you must know that glassless surfaces in a way or another take up the colour of the detergent.