I just started using PHP a week or so ago... And everything is coming
along great... But I have some general question about sessions...
Actually, about PHP's built in session support.
Do I need to call session_start() in every script that needs access to
$_SESSION[]?
Would it cause any problems if I do?
If not, am I supposed to just call it once on the login page for my
website and then thats it?
I think I would like to store a user id in my $_SESSION[] global. If
this variable is set, I will consider this session "logged in". Is
their a secure way to do this?
I would like to have at least an outline of how this works in my head,
so tell me if I am wrong in any of this:
When session_start() is called, this function sets a cookie in this
browser with a unique value that is bound to a set of globals (IE, the
contents of $_SESSION[]). When subsequent HTTP requests have this
cookie attached, the correct set of $_SESSION[] variables is loaded...
Everything right?
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td
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