Multiple sessions in one instance using PHP?

Question

I have a project where I would like to create two session cookies in one browser. The first session would be to uniquely identify a person, the second would be to share even

Answer 1

If you want to share information between users, using a session is not the best idea as it uses the file system. You would be better off using the database which handles all the issues of locking, concurrency etc.

Although what you ask for is technically possibly, I would strongly recommend against it.

EDIT

Assuming I have understood your requirement correctly, here is how I would do it:

1. Use session only to store session data related to that user. It could include something like:

   $_SESSION['name'] = 'test name';
   $_SESSION['groupid'] = 2;
   

2. A MySQL DB and table with fields groupid, XXXXX (data you want to store), timestamp

Whenever anyone updates information for a particular group id, you update the timestamp.

Then run a simple cronjob to check if any current time - timestamp > 3600 (one hour) and you can consider that as stale and delete those records.