Re: CGI::Session flush() functions

flush() writes the session object to disk (or database, or whatever you use as a storage backend).

When you store a new param in a session it will be lost after the end of your scriptunless you call flush.

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Re^2: CGI::Session flush() functions by jettero (Monsignor) on Aug 20, 2008 at 12:37 UTC
I think it actually tries to flush when the Session object goes out of scope. I believe it fails to flush only when the script dies unexpectedly. UPDATE: No doubt. Explicitly flushing is better in every way. I was just saying that there are occasions where it will flush on its own, not terribly reliable, but they exist. -Paul	[reply]
Re^3: CGI::Session flush() functions by moritz (Cardinal) on Aug 20, 2008 at 12:41 UTC
Not only when it dies unexpectedly. I had a whole lot of cases of normal exits where it also failed to flush the session, which is why I recommend to always manually call `$session->flush()`. The CGI::Session maintainers know of these problems, and encourage you to not rely on auto flushing.	[reply] [d/l]