Just a quick question on cookies.

I've been wondering about this for a while, and before I start coding I want to know: I'm working on a site that I want to streamline in part with the forum (vBulletin). I want to know if the cookies created by the forum scripts will be accessible from the site script.

Basically, if a user logs in to the forum, and then goes to the site section (or vice-versa), will the cookies created by the login on one be available to me on the other?

I know Cookies are only sent when the domain matches it. The site and forum are on the same domain (although the forum is in a subdomain, though basically a sub-domain is just a quick way to access a directory).

Thanks in advance for the help.

They should be carried over. The cookies should work accross subdomains as long as the path and domain is set correctly. Note this from the vB ACP:

Cookie Domain
The domain on which you want the cookie to have effect. If you want this to affect all of example.com rather than just forums.example.com, enter .example.com here (note the 2 dots!!!). You can leave this setting blank.

So you might have to change the default cookie domain to .example.com.

Also worth mentioning, not all users browse with cookies enabled. The cookies keep track the session ID's instead of putting those ugly 32 characters within the URL, but if a user doesn't have cookies enabled then they may have trouble keeping their session if you don't put it in the URL. If you are simply include()'ing the global vB files for your custom scripts, then $session[sessionurl] will hold the session data that is to be inserted into the URL. It contains s=<SID>&amp;, so it should be before any other query data you need:

PHP Code:

echo "<a href='index.php?$session[sessionurl]go=aboutus'>About Us</a>"; 


Alright. Thanks a lot Chroder