Re: how to see all sessions sets in server

Farzan Dalaee <farzan.dalaee@gmail.com> wrote: > > >> On Sun, 2013-08-04 at 14:56 +0430, Farzan Dalaee wrote: >>> >>> You mean when user logged in i add new record to table and when >logged out i delete the row? So if user close the browser without >logout how can i find user is online or not? >>> >>> Sent from my iPhone >>> >>> On Aug 4, 2013, at 14:44, Matijn Woudt <tijnema@gmail.com> wrote: >>> >>> > >>> > >>> > >>> > On Sun, Aug 4, 2013 at 11:02 AM, Farzan Dalaee ><farzan.dalaee@gmail.com> wrote: >>> >> hi >>> >> i want to write online user module for my site and i want to >check >>> >> $_SESSION['userID'] to find all users id who loged in >>> >> but when i echo this code its return only current user detail >>> >> how i can see all sessions? >>> >> >>> >> foreach($_SESSION as $k => $v) >>> >> { >>> >> echo $k."----------".$v; >>> >> } >>> >> or how i handle online users? >>> > >>> > You can only access sessions when you know the session id. >>> > Most sites handle online users in their database, store a >timestamp each time a user loads a page. When you want to display the >online users, check where the timestamp is between now and a few >minutes ago. Note that without javascript (or flash/java/etc) there is >no way to truly know if the user left or not. The session will stay >active for a long time, depending on your php.ini settings. >>> > >>> > - Matijn >>> > >> >> Like Matijn said, unless you're using some kind of client-side method >to continually poll the server, you can't know if they've just closed >their browser. There are Javascript events for exiting a page, but they >don't work correctly on Safari and iOS Safari. >> >> You don't have to actually save anything to the DB manually, just >instruct PHP to use the DB for its own sessions, rather than files. >> >> Do you really need to inspect each visitors session in detail, or do >you just need a way to determine how many unique visitors are on the >site at any one time? >> >> Thanks, >> Ash >> http://www.ashleysheridan.co.uk >> >> >> > > >I need to inspect each visitor to show how online or who offline for >chat >Like facebook chat >> Ah, so you don't need to see the details of the sessions then. Facebook does this (badly) by using javascript on the client side which triggers an update of a timestamp on the server, which then allows you to determine who is online (or was within a given time limit) Thanks, Ash