Question: How can I create a screenshot of a website using PHP and the GD library.

Answer: 
While you might be able to do something with [`imagegrabscreen`](http://www.php.net/manual/en/function.imagegrabscreen.php) or [`imagegrabwindow`](http://www.php.net/manual/en/function.imagegrabwindow.php) you'd only be able to use it on a Windows box, and even then it would be tricky. 

You'd have to open a browser window to the specified url (you could do that with `exec`) and grab a screenshot using the aforementioned methods.

Here's an example from the manual entry for [`imagegrabwindow`](http://www.php.net/manual/en/function.imagegrabwindow.php):

```
<?php
$browser = new COM("InternetExplorer.Application");
$handle = $browser->HWND;
$browser->Visible = true;
$browser->Navigate("http://www.libgd.org");

/* Still working? */
while ($browser->Busy) {
    com_message_pump(4000);
}
$im = imagegrabwindow($handle, 0);
$browser->Quit();
imagepng($im, "iesnap.png");
imagedestroy($im);
?>

```
Website is rendered on client side, while PHP and GD are server side. You may also check [this website](http://www.zubrag.com/scripts/website-thumbnail-generator.php) out. Hope it helps.