printout button with php

i just have no idea on how to make the application with button "Print" so that users can print out the page by clicking the button.
any idea or hints for me please?

thanks

Since printing is a client-side operation, you'll want to use Javascript for that.

Google -> javascript print (http://www.google.com/search?hl=en&lr=&q=javascript+%2Bprint&btnG=Search)

Fumigator, thanks!
will check it out! ^^