session expire

[kishan]

HI

iam having a limit of 10 mins for the sessions in my app using..

if (!$_SESSION) {   

session_set_cookie_params(600);

session_start();

}

 

I want to echo a message when the session was timed out how can i know this ?

 

i want ot differentiate the user was visited for the first time and the session was timed out..?

 

Please help Thanks in advance

[waynew]

You could just simply redirect them to the login page with a get value such as:

 

header('Location: login.php?timeout=Y');

 

Then on the timeout page you could show a message letting them know what happened.

 

if(isset($_GET['timeout']) && $_GET['timeout'] == "Y"){
echo 'Your session timed out';
}

[kishan]

Hi thanks for reply .

yes but how can i know initially that my session was timed out .

[waynew]

When you start the session you could do something simple like:

 

$_SESSION['logintime'] = mktime();

 

That will record a timestamp in seconds.

 

Then on another page, simply compare the current time with the older time recorded in the session variable.

 

$now = mktime();
if($now - $_SESSION['logintime'] > 600 ){ 
header('Location: login.php?timeout=Y'); 
}

 

IF 60 seconds have passed, redirect. Probably not the best way to do it but it has done the job for me.

[kishan]

But the way iam doing is correct?

 

if (!$_SESSION) {   

  session_set_cookie_params(600);

  session_start(); 

}

 

 

because if i was not logged in this block will execute every time

[revraz]

$_SESSION won't exist if you don't have session_start() before it.