Re: Browser Sniffing

On Tue, 04 Mar 2003 18:32:33 -0700, you wrote: > I know, it can't be done in PHP. That's not exactly what I'm here >for. I have a client who would like to redirect people to a polite >'upgrade your browser' page whenever people visit his site (which has >been developed in PHP no less). My question here is, how can I make >this so that regardless of what URL someone comes in to, it will always >run the sniffer prior to loading the actual URL they visited? In other >words, whether the visitor comes to the main url (http://www.site.org), >or whether they are going to a specific link >(http://ww.site.org/seethis/), the client would like the sniffer to >check them all. include ('badcode.inc') at the top of every file. badcode.inc looks at the HTTP_USER_AGENT, if it doesn't like it does a header('Location: ') to your "we don't want you as a customer" page, followed by exit() simple. You can probably deny access with mod_rewrite rules, also. That may be quicker and more complete (the above only works with PHP pages, obviously). > I know I can stick the whole javascript sniffer into each and every Forget about javascript. I bet half the users you want to exclude don't run javascript. > Suggestions welcome. Well... don't do it. It's such a bad idea, on so many levels...