How to extract a web page information?

Question

like extracting Price of particular product on a page like eBay or Amazon or Flipkart

Answer 1

use web scraper

Answer 2

GIT HUB API'S are present only for non public sites

Answer 3

check github sites u may get some information

Answer 4

some issues with php codes
may cause security flaws

Answer 5

thanks @ Akshay Ankaliki I know about web scrapper but I need code like PHP

Answer 6

any other code to extract information please help.

Answer 7

ok