[thelist] in-principle, PHP/mySQL shopping basket question

john at johnallsopp.co.uk john at johnallsopp.co.uk
Wed Jul 23 10:06:04 CDT 2003

That makes the problem worse, as I was intending to write the basket to
the database. If I do that and the session variable is cleared up, then I
still have a database with a basket in it ... but (the penny drops) .. I
guess you're saying I shouldn't bother with the database, just store an
array of product ids in session variables. That makes sense.


> Garbage collector is designed for this. Everytime you call
> session_start(), there is session.gc_probability % probability that
> garbage collector starts up and removes all session files that have not
> been accessed for session.gc_maxlifetime seconds.
> john at johnallsopp.co.uk wrote:
>> Hiya
>> In principle, how does this work? I'm developing a shopping basket for
>> one of my sites in PHP/mySQL. So the client arrives, gets a session
>> id, adds things to their basket and then leaves without buying
>> anything.
>> What rule do I implement to discard the basket. I can't tell that
>> they've left the site barring timeout, and what if someone wants to
>> keep their basket open overnight or similar?
>> What have I missed?
>> Cheers
>> J
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