Best PHP Book with user rating script?

[francisnong]

Hi folks, I have a question. I was wondering which PHP book do you know of that shows the script for adding user rating to your comments forms.

I have a couple of PHP books but i just need to have one that demonstrates how to go about adding user rating functionality. I have almost completed my PHP site. But i feel i should add a functionality that allows other users to rate content that other users post.

Thanks.