Creating an autonumber setup

Hi, Could someone explain to me how this could be done? I have seen something similar using Access on a local machine and would like to know if it is posible to do it in PHP and Mysql In a project management web based applicaton using PHP and Mysql I would need to allow the user to create Quote Project Customer Supplier Invoice Each time one of the above will be created it needs to be assigned an autonumber. So If 3 quotes were created today each quote would receive an autonumber, maybe something like the fllowing: yy/MM/dd-01 yy/MM/dd-02 yy/MM/dd-03 Creating the autonumber isn't the problem if I want to have a set way of numbering, however, is it possible for me to allow the user to enter a setup page or something and define the way the autonumbers will look like and be created for quotes, projects, customers, suppliers or invoice. let's say I have five Project Managers each working with a seperate version of the app. The app currently sets each new project created with a default autonumber (let's say yy/MM/dd-01, -02, 03 and so on), however, each Project Manager wants their database to number new projects differently: PM1 = yy/MM/dd-a PM2 = dd/MM/yy-01 PM3= YY-2222 (Number being the amount of projects this year) PM4 = PROJ-2222 (Number being the amount of projects ever) PM5 = P-yyMMdd1 Instead of me creating a different application for each project manager can I allow them to setup their own number system in a set up page? Many thanks for any ideas Richi