How to build a site data extractor??

Question

i want to build a website data extractor. anyone can help me please...

Answer 1

What do you even mean by that?
Also, no matter what you meant, there's no way we're gonna do your code for you so... you must start by yourself and ask for specific questions on specific problems you might encounter, if you even do

Answer 2

Web scrapping is really common task, there are a lot of tools and libraries for python, php, ruby witch can do it for you. Long story short they all do same parse main page, get all data collect all internal links, go to those links one by one and do the same actions. After all pages visited it stops.

Answer 3

please, give me the codes...