http://www.zendecode.com/index.php?view=purchase I want people enter number of files, they'll receive prices instant. I want to create a paypal button, when user click it, it'll goto paypal page and pay amount they received. Can you help me? I just use paypal, I don't know...
just follow their manual - http://www.paypal.com/cgi-bin/webscr?cmd=p/pdn/intro-outside It's easy to set up a paypal form on your page.