How do i find a users ISP ie. www.ihug.co.nz??? I've seen pages show me i'm with www.paradise.net.nz so i know it can be done but are unable to find the code
Try grabbing their IP address ($_SERVER['REMOTE_ADDR']), and then using a simple ARIN lookup to see who owns that IP address/range.
ARIN Whois Lookup
You'll have to capture the output of that and grab the information that you want.
~Brett
