Android Map Activity with markers from SQL database PHP

I am in need of some help. I have a SQL database (two related tables) on a web server and a simple Android application. I need some coding help to get the app to: 1) Populate a map activity 2) Populate a list activity The database and the php file built already. some minor changes may be required. The main work here is the map overlay and the list activity code. I can handle the layout code. Just need MAP API and SQL/PHP help. I even have a simple app already created. but I am only able to get one marker to drop on the map.