I'm in the process of setting up PhpDig and it works quite well.
But, there is one minor problem. PhpDig is not identifying itself when it accesses every page. Here's a sample from my logs on a test site...
69.64.40.48 - - [12/Jan/2005:11:32:58 -0500] "HEAD /robots.txt HTTP/1.1" 200 - "-" "PhpDig/1.8.6 (+
http://www.phpdig.net/robot.php)"
69.64.40.48 - - [12/Jan/2005:11:32:58 -0500] "GET /robots.txt HTTP/1.0" 200 321 "-" "PhpDig/1.8.6 (+
http://www.phpdig.net/robot.php)"
...
...
69.64.40.48 - - [12/Jan/2005:11:33:00 -0500] "HEAD /contact_us.php HTTP/1.1" 200 - "-" "-"
As you can see it does fine when requesting robots.txt, but when it requests an actual page it doesn't identify itself.