Sessions???
I am trying to set up a site to restrict access to certain topics based on the users access level.

I am wondering what is the best way to store/remember the level of the user without them knowing what it is, being able to change it and be able to pass to through all the pages as each page has different levels of restrictions.

The question is therefore NOT how to restrict the access but RATHER how to store the variable for the session of the user, securely, and then remove any trace of it from their computer(if necessary) at the end.

(secenario: what if they do not have cookies enabled? i am not sure if this matters)

Thanks
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: Sessions???
: I am trying to set up a site to restrict access to certain topics based on the users access level.
:
: I am wondering what is the best way to store/remember the level of the user without them knowing what it is, being able to change it and be able to pass to through all the pages as each page has different levels of restrictions.
:
: The question is therefore NOT how to restrict the access but RATHER how to store the variable for the session of the user, securely, and then remove any trace of it from their computer(if necessary) at the end.
:
: (secenario: what if they do not have cookies enabled? i am not sure if this matters)

If they don't have cookies enabled, you can't use session variables anyway (since they use a cookie to store the session id). So if you are only storing a single value and not a whole lot of data, a session variable should be alright.