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Information extraction from external sites

         

gavinmcnamee

1:00 pm on May 1, 2008 (gmt 0)

10+ Year Member



I have been a bit miffed as to how websites can go and search other website and bring back information to compare?

The site i am talking about are site that compare prices for various thing like flights, electrical goods, financial products etc...

How do you extract this info? Do you need to contact the sites webmaster and as for access to there product database? Can you just do it regardless? Can it be done with basic php?

Can any one please enlighten me?

Any snippets of advice of info would be very helpful

Thanx

gavin

PHP_Chimp

1:28 pm on May 1, 2008 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



have a look at the curl [uk.php.net] functions.
As they can be used to find information if you know where you are looking.

gavinmcnamee

1:48 pm on May 1, 2008 (gmt 0)

10+ Year Member



I don't realy quite understand cURL. Are there any good tutorials or alternatives regarding a price comparison website?

PHP_Chimp

3:22 pm on May 1, 2008 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Google is your friend. There are plenty or tutorial out there to help you get started with curl.