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file, link autocheck

Posted: Mon Jul 23, 2007 1:18 pm
by m2babaey
Hi
Have you seen some link exchange services that automatically check to find if members have placed a special code on their website and linked to it from their homepage?
How do they do it?

Posted: Mon Jul 23, 2007 1:36 pm
by miro_igov
I guess preg_match()

Posted: Mon Jul 23, 2007 2:10 pm
by superdezign
With a mixture of file_get_contents or cURL.