What are the consequences of storing large amounts of data in a session cookie?

Question

Can someone explain the disadvantages of storing large amounts of data in a session or tell me some readings?

I would also be wondering if there is a difference between storing data in a session and reading data from data files?

Answer 1

If you store a large amount of data in a session, you will have I / O performance, as there will be a lot of read / write.

Sessions in PHP are, by default, stored in the / tmp directory in a flat file. Therefore, your session data is written in some form of data file.

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php.ini, session.save_handler.

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Answer 2

: http://tuxradar.com/practicalphp/10/1/0

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