413608 Thumbnail generator script

Hello, I am looking for a php script for Linux that would create a webshot thumbnail of the web page like [login to view URL] something I can call like below http://www.website.com/thumbnail.php&website=http://www.amazon.com&h220&w180&f3 I thought it would be nice to have a larger thumbnail than one used at thumbshots There are windows system versions but i thought it would be more productive to have the script. The script would create a jpg file in a assigned directory with w is width. h is height and f with the number example 3 would create [login to view URL] as the file name Even a small script would work nothing fancy I am working on a link script reviewing web sites so it would look nice to have a larger website snap as an example of the site being reviewed showing a little sample image of the front page