dynamic web page automatic snapshot

I have a dynamic web site (php/mySQL/Ajax on a Linux server), I need to take automatically a photo (snapshot) of each web page periodically (If I can find the way to do the snapshot... I can use cron) and save this image to the database (I also know how to do this...my only problem is the photo!).

I can't do it manual开发者_如何转开发ly, so I need an script which take the snapshop for me, without displaying the web page, i.e directly from the .php files.

How is it possible?

Thanks!

http://browsershots.org/ may work for you, they have an api

You can use the GD functions imagegrabscreen() or imagegrabwindow() to take a screenshot.

Note that they're only available on Windows at the moment.

Looks like this might answer your question, I have seen it done with php and flash but wasn't privy to the inner workings, if the link doesnt help then you could research that route.