A surf net tool -- is it possible?

Hi expert,

Just want to ask you a question. Let say I want to make a program automatically surf the whole wiki webpage and then extract some useful information for me, is it possible to do? and by which language I can use as the best choice?

 

download the wiki database , query it and that's it

 

Yes It's possible. If i done I'll use php

 

Can you guys set more light on it for me? I just give an example as illustration purpose only. It's really a relief if you can give me some keywords like there are something similar already done or whatever etc and I can save my time to explore it.

btw, a milllion thanks

 

here you can download the wikipedia IN MYSQL

http://en.wikipedia.org/wiki/Wikipedia:Download

 

Thanks you! However as I said it's just only an example. The db of wiki is available and free to download, but if we want to collect other site info like this digital 4rum, what/where should I start?

 

well just use google search and add all the sites you want

http://www.google.com/coop/cse/

 

it seems there are something unclear here, my question like software which will automatically surf all the pages of a web-page and collect the useful information for me. Let say a text file, in this text file, there are some important numbers and I need it, so anyone could give me any hints or where should I start?