I've developed a web application in PHP and MySQL. One part of the system I've been putting on hold for a while now, is allowing my users to create a simple form inside my application, and once they're done, copy and paste some code which I generate into their existing remote websites (IE: Contact Form) where this form should appear.
When visitors to their site enter their data into that "contact form" or whatever they've created, it should save the info into my application database where the users will be able to access it. It must be unobtrusive.
Is there anyone who can give me a good starting point on how to achieve this?
Im a little confused on what youre asking. Are you asking if there is a way to automatically copy the generated form to the clipboard, or how you set the form up to allow it to post data back to your own server?
If its the former, Bradley above pretty much explained it. If its the latter, then there are a couple of ways that you can go about doing it.
If you want it to submit the form without actually redirecting back to your own site, then you need to submit the form via AJAX (read XMLHttpRequest, or the $.ajax() function if youre using jQuery). The only problem here is that it violates the same origin policy since youd be submitting from a different domain. To fix this, you need to setup your webserver to allow cross domain requests so that it'll actually work.