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Posted by Jon-Eirik Pettersen on 02/24/05 18:58
On Thu, 24 Feb 2005 09:42:21 +0000, Nick Talbott <nickt@powys.gov.uk> wrote:
> On Thursday 24 February 2005 9:38 am, N Deepak wrote:
> > Jacques wrote:
> > > Which function can I use to capture a user's IP Address when he registers
> > > on my site. I would like to store this value in a database.
> >
> > print $_SERVER['REMOTE_ADDR'];
> >
> > --Deepak
>
> ..But be careful! -If the user is going via a proxy to access your server
> that will be the IP address of the cache server, not the originating client.
>
> - Nick
I have seen many "my-ip"-scripts that read the X-Forwared-For:-header,
and if it is empty it uses the REMOTR_ADDR. The problem doing it this
way; the X-Forwarded-For-header can easly be modified and the
IP-address "faked". The solution is to save both if it is for logging,
and use REMOTE_ADDR for everything else.
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