I need a script to search my data base based on a chose made in a drop down (catagory) and than to find the reqested information in that section of mysql data base.....
I'm not quite clear on what you mean with you need a script that does this...
The sql select command will do it for you. All you have to do is specify the constraints accordingly (e.g. WHERE username = 'whatever').
The value of the drop down probably is part of your $_POST array or else of $HTTP_POST_VARS
Also, about an emulator, why not simply install PHP on your machine? So far, i've managed to get it to run on all kinds of configurations, including Windows 98, ME, XP, NT and Linux.