Best way to prevent access to page B except via page A?

[Donny Bahama]

Hopefully the title says it all. I need to make sure that page B can not be linked to or directly accessed except via a password form on page A. I'd prefer to do this server side as opposed to using javascript, etc. (The contents of page B contain very valuable trade secrets and must be well protected.)

What's the best way to handle this?

[saltedm8]

look into sessions

http://www.phphacks.com/content/view/29/33/

http://hvassing.com/2007/simple-php-...ion-and-mysql/

just google it and you will find loads

these are vulnerable to injection hacks as they stand, but if you create it, then ask in the php forum, we could tell you how to make them secure