Dang it. How do I do this?

[Anon]

Can any one tell me how I can stop a web page on my server from loading if a visitor is not coming from a specific site?

I need to stop the page from loading if the visitor is not being redirected automatically from a specific web site:

example \"www.shoppingcart.com/redirect\"

I need to be able to say something like:

if $GLOBAL[HTTP_REFERER] does not contain \"shoppingcart.com\" then exit.

any help on how to do this in php would be greatly appreciated

[Anon]

if (eregi("shoppingcart\.com", $HTTP_REFERER))
echo "You came from shopping cart";
else
echo "You didn't come from shoppingcart";

You may need to replace $HTTP_REFERER with $GLOBAL["HTTP_REFERER"], $_SERVER["HTTP_REFERER"], SERVER_VARS["HTTP_REFERER"], etc. depending on your configuration.

[Anon]

Use exit() to stop the execution of the script... but I think you should consider this :

Referer : http://www.mydullsite.com/path/file.html?shoppingcart.com

Referer :
http://www.mydullsite.com/shoppingcart.com/file.html

Etc.

Security hole ?? !!