I also do this:
I have a mysql-table with id (autoincrement), random, time, user and so on. When an user gets a new session I create a random number and the user gets the random number together with the id back. So if he alters the id or random, the session entry can not found in the database. The field time is for timeout and user stores the user id (or whatever you want).

To delete outdated session I do: "DELETE FROM session WHERE time < $time" and $time is time()-$expire (expiration time in seconds).

In reply to Re: Re: Re: Secure Session ID values by uwevoelker
in thread Secure Session ID values by Hero Zzyzzx

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