a coding dought in session

[kuttus011]

how to fix a timer in the session as like if the user didnt log out auto matically log out after a required time how to make it can ay body help me

[logic_earth]

The word is "doubt" okay?

Second the timer doesn't go in the session's data. It has to go into a place that all sessions could access it. But there is no need for that anyways as PHP's garbage collection with remove old sessions.

[kuttus011]

no friend i have one site where how can fix a timer for the loging out like unfortunately the user didnt loged out means it should auto maticlly loged out after a few min so can we develope it through progrm wise can u help me if u can pls ok thnk for ur english

[logic_earth]

PHP's garbage collection will handle users who have not logged out. Just as I said previously.

[Jake Arkinstall]

Or do you mean logged out as in on a database?

In which case you should have a field for 'last activity', rather than a 'logged in' field. Then, to see if they're logged in, see if their last activity is in the last $time seconds.

For example:

define('LOGGED_IN_LIMIT', 2 * 60 * 60); //2 hours
function isLoggedIn($Username){
    $Username = MySQL_Real_Escape_String($Username);
    $Limit = LOGGED_IN_LIMIT;
    $Query = MySQL_Query("SELECT 1 FROM Users WHERE Username = '{$Username}' AND (UNIX_TIMESTAMP() - UNIX_TIMESTAMP(LastActivity)) <= {$Limit}");
    return (MySQL_Num_Rows($Query) > 0);
} 

Not very sure with the date functions in MySQL, so there may be a better way... (enter Rudy...)