Sniff a user's city by remote host

[jake66]

Is this possible?

I would like to redirect every user in "los angeles" for example, to a certain page.

I tried:

if ($_SERVER['REMOTE_HOST'] contains 'angeles'){
echo'it worked';
}

...but obviously it did not work.

Now I realize this isn't fool proof and not all ISPs place city names in the remote host. It doesn't need to be fool proof, as this is only a temporary redirect for now.

[deMorte]

Try this:

$host = $_SERVER['REMOTE_HOST']; 
if ( strpos($host,'angeles')) 
{ 
echo'it worked'; 
} 

[jake66]

Thank you so much!

Do I need to put any security filters to filter out html characters in case some script kiddie figures out they're being redirected and thinks they found a way into my site?

[deMorte]

I'm not sure what kind of information $_SERVER['REMOTE_HOST'] contains, I haven't really used this in any application.
If the html character filter does not create any problems, why not use it?
Then again, if this redirect is just a temporary solution, it may be a waste of time.