Check if another session of the page is running?

[jeremyhowell]

I want to keep people from opening multiple tabs, or sessions of my Facebook app. Is it possible to check if a session is currently running of my app, like maybe using a cookie or something?

[mikesta707]

you could just use sessions, and check if one is set

if (isset($_SESSION['whatever'])){
//they are already viewing 
}

 

But that may lead to unwanted results. For example, if you have that check doing something like

if (isset($_SESSION['var'])){
//don't let the user play
}
else {
//let them play
}

 

then if the user refreshes the page, they won't be able to play again until they close the connection to the server (IE closing the page/browser)

 

 

[jeremyhowell]

Okay, thanks you.