How does php server identify that the particular sessionbelongs to particular user
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From: Ashley Sheridan on 11 Jun 2010 03:45 On Fri, 2010-06-11 at 13:01 +0530, Peter wrote: > Hi All, > > My Question is "How does php server identify that the particular session > belongs to particular user?" > > Please help me out > > Regards > Peter.m > All the session data is stored on the server either in a database, file or memory against a unique ID value. The server handles how this is done, and it's likely you won't ever need to get involved with changing how it does things. >From the client-side of things; the user agent (browser) sends this unique ID either as part of the URL or with the headers as a post variable, which is why you may see a PHP_SESSION_ID (or something similar) index in the $_REQUEST array when you use session_start() in your scripts. Has this helped? Thanks, Ash http://www.ashleysheridan.co.uk
From: Ashley Sheridan on 11 Jun 2010 05:36
On Fri, 2010-06-11 at 15:13 +0530, Peter wrote: > Hi Ashley, > > Thanks for your answer. > > When too many users log in at the same time, the server gets loaded > with multiple sessions files that leads to complexity and crashes the > server. In such cases how do we handle this ? > > Thanks in advance > > Peter > > > Ashley Sheridan wrote: > > > On Fri, 2010-06-11 at 13:01 +0530, Peter wrote: > > > > > > > > > Hi All, > > > > > > My Question is "How does php server identify that the particular session > > > belongs to particular user?" > > > > > > Please help me out > > > > > > Regards > > > Peter.m > > > > > > > > > > > > > > All the session data is stored on the server either in a database, file > > or memory against a unique ID value. The server handles how this is > > done, and it's likely you won't ever need to get involved with changing > > how it does things. > > > > >From the client-side of things; the user agent (browser) sends this > > unique ID either as part of the URL or with the headers as a post > > variable, which is why you may see a PHP_SESSION_ID (or something > > similar) index in the $_REQUEST array when you use session_start() in > > your scripts. > > > > Has this helped? > > > > Thanks, > > Ash > > http://www.ashleysheridan.co.uk > > > > > > > > I don't think it's the sessions that are crashing your server, it's more than likely something else. What is the server load when you notice the crashes? How many people are visiting your site simultaneously at that point? Thanks, Ash http://www.ashleysheridan.co.uk |