note 69603 deleted from function.session-destroy by bjori

Note Submitter: wrong at andright dot com ---- $_SESSION is the only superglobal whose uninitialized value is not that of an empty array but that of NULL. If there is no reason behind it, I don't know, but I assume there is. Therefore, destroy a $_SESSION by assigning to it NULL. The rationale behind assinging to it array() is that your codes may have loops in it that scan a destroyed session. The fact is, your codes should not have such loops in the first place. A code that loops a destroyed session, is a terribly bad code and no solutions that encourage terribly bad coding prcatices should be sponsored. $_SESSION=null is the _compliant_ way to go. It will pass all tests, included isset($_SESSION).