Lazy Sessions in CakePHP

[Simon East]

Has anyone ever attempted to implement "lazy sessions" in CakePHP?  I tried googling it and came up with zero.  I'm interested in attempting it, and wondered whether it may be something that we could possibly implement into Cake 3 (is there a release time-frame for that yet?).

What I mean by "lazy sessions" is that a session cookie is not sent to the client if you're simply attempting to READ from the session, only when you WRITE to it.  This means that anonymous users on your site don't get the cookie, and it's easier to cache those pages with Varnish or whatever else.  When a user logs in, they get a session cookie, and then those pages may be individualised.

This StackOverflow question discusses it somewhat:

http://stackoverflow.com/questions/2998166/how-should-i-implement-lazy-session-creation-in-php

Anyone have any thoughts or experience with doing this?

Simon East  |  Technical Lead  |  surfacedigital

Level 1, 60 Hardware Lane, Melbourne VIC 3000 Australia
Ph (03) 9670 7062   Skype simoneast_oz   Tw @surfacedigital   www.surfacedigital.com.au

[Ravage84]

Hi Simon,

Have you seen this?
https://cakephp.lighthouseapp.com/projects/42648/tickets/3124-add-option-for-disabling-the-auto-starting-of-sessions#ticket-3124-30

May be you can join the discussion and even contribute some code?

Ciao
Marc

[Simon East]

Oh yeah, thanks Marc.  I had replied to that issue last year, but had forgotten about it.  If others think it would be beneficial, I'd be happy to contribute some code when I get some time to put something together.

Simon East  |  Technical Lead  |  surfacedigital

Level 1, 60 Hardware Lane, Melbourne VIC 3000 Australia
Ph (03) 9670 7062   Skype simoneast_oz   Tw @surfacedigital   www.surfacedigital.com.au

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[mark_story]

One of the difficulties in doing a lazy start is handling the various situations, and limitations in PHP. If you don't start the session when trying to read it, your reads will fail. You might be able to work around this issue by poking about in $_COOKIE for the session cookie though. For some reason I remember the session cookie not showing up in $_COOKIE though.

-Mark