Redirect users based on IP address

[kevvy]

Hello people, I've searched far and wide but I cannot find a script to redirect users based on IP address.

Lets say I want to target 203.0.0.0 and 144.0.0.0. I want to redirect 203 to http://index203.com and 144 to http://index144.com. How would I achieve this? I would like the script to redirect based on HTTP_X_FORWARDED_FOR IP.

Thanks

[dannys]

Untested, but it should work ok. Make sure that nothing has been output to the browser when this is called!

<?php

$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];

switch ($ip)
{
	case '203.0.0.0':
		header('Location: http;//index203.com');
		break;
	case '144.0.0.0':
		header('Location: http;//index144.com');
		break;
	default: // This is optional but it might be useful so I stuck it in
		header('Location: http;//www.ipnotmatched.com[/url]');
}
?>

NB. Change the ; back to : - I had to use them to stop vB turning the urls into links!

http://www.php.net/header
http://www.php.net/switch
http://www.php.net/manual/en/reserved.variables.php#reserved.variables.server

[kevvy]

Originally posted by dannys
Untested, but it should work ok. Make sure that nothing has been output to the browser when this is called!

<?php

$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];

switch ($ip)
{
	case '203.0.0.0':
		header('Location: http;//index203.com');
		break;
	case '144.0.0.0':
		header('Location: http;//index144.com');
		break;
	default: // This is optional but it might be useful so I stuck it in
		header('Location: http;//www.ipnotmatched.com[/url]');
}
?>

NB. Change the ; back to : - I had to use them to stop vB turning the urls into links!

http://www.php.net/header
http://www.php.net/switch
http://www.php.net/manual/en/reserved.variables.php#reserved.variables.server [/B]

How would one redirect by 203. 144. etc instead of using actual full IP?

[dannys]

This will match the first section of an IP

list($ip)=explode('.',$_SERVER['HTTP_X_FORWARDED_FOR']);

switch ($ip)
{
	case '203':
		header('Location: http;//index203.com');
		break;
	case '144':
		header('Location: http;//index144.com');
		break;
}

[theslinky]

A better way would be to configure this into apache (i assume you're using apache? if you're using IIS, it's possible too).

Setup a virtual host for the addresses 203. (I think wildcards are allowed) and set the document root to something and setup another virtual host for 144 with a different document root.

If you want to redirect to domains outside your server, use an apache redirect.

take a look at the docs at apache.org for info 🙂

-sridhar

[dannys]

Originally posted by theslinky
A better way would be to configure this into apache (i assume you're using apache? if you're using IIS, it's possible too).

Setup a virtual host for the addresses 203. (I think wildcards are allowed) and set the document root to something and setup another virtual host for 144 with a different document root.

If you want to redirect to domains outside your server, use an apache redirect.

take a look at the docs at apache.org for info 🙂

-sridhar

Don't see what virtual hosts have to do with anything - he's wanting to match the IPs of connecting clients. Besides, doing it in PHP is much more portable, nothing has to be changed (on the new server) if the code is moved from one server to another.

[theslinky]

whoops! I'm sorry, you're right! 🙂

I mistook it for the IP the server is being accessed as.

-sridhar

[kevvy]

Originally posted by dannys
This will match the first section of an IP

list($ip)=explode('.',$_SERVER['HTTP_X_FORWARDED_FOR']);

switch ($ip)
{
	case '203':
		header('Location: http;//index203.com');
		break;
	case '144':
		header('Location: http;//index144.com');
		break;
}

[/B]

I get The page cannot be displayed. I used the code below;

<?php
list($ip)=explode('.',$_SERVER['HTTP_X_FORWARDED_FOR']);

switch ($ip)
{
case '203':
header('Location: http://www.iinet.net.au');
break;
case '144':
header('Location: http://www.bigpond.net.au');
break;
}
?>

[dannys]

I just tested it and the code works fine here - the url http://www.bigpond.net.au doesn't work even when typed into the browser manually. It looks like it's Big Pond's problem.

I tried with the addresses http://www.bbc.co.uk and http://www.yahoo.com and they both worked fine.

[kevvy]

Originally posted by dannys
I just tested it and the code works fine here - the url http://www.bigpond.net.au doesn't work even when typed into the browser manually. It looks like it's Big Pond's problem.

I tried with the addresses http://www.bbc.co.uk and http://www.yahoo.com and they both worked fine.

Wow your right! I should of tested it with another URL. Thanks for the tips!