How do I get someones IP address?

From: Andreas Saarva (andreas_saarva_at_hotmail.com)
Date: 05/26/04 

Date: Wed, 26 May 2004 05:30:11 +0200

This is making me crazy... I have checked alot of scripts etc, but none of
them aint telling me how to get the IP address of a visitor.

I have tried everything I can imagine, like...

$ip_address = $_IP_ADDRESS['ip_address'];

Nothing aint working, could anyone help me? >.<

Thanks in advance,
Andreas.

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