php loginn time

[imran ansari]

hi
i want to know how can i calculate the time difference b/w login time and logout time in php.

[hsriat]

hi
i want to know how can i calculate the time difference b/w login time and logout time in php.

Save the time in database.
To get time, use gettimeofday()

[VinniemacND]

Save the time in database.
To get time, use gettimeofday()

Alternative way:
If you don't feel like modifying the table structure, you could instead store the login time in a session variable, and when the user logs out, just subtract the login time session var from the current time (logout time).

When the user logs in, you could do

[PHP]session_start() ;
$_SESSION["login"] = time();
// rest of code[/PHP]
When the user logs out:

[PHP]session_start() ;
$timepass = time() - $_SESSION["login"];
// continue logout
[/PHP]

[Markus]

Alternative way:
If you don't feel like modifying the table structure, you could instead store the login time in a session variable, and when the user logs out, just subtract the login time session var from the current time (logout time).

When the user logs in, you could do

[PHP]session_start() ;
$_SESSION["login"] = time();
// rest of code[/PHP]
When the user logs out:

[PHP]session_start() ;
$timepass = time() - $_SESSION["login"];
// continue logout
[/PHP]

What if the user doesn't log out?

[VinniemacND]

What if the user doesn't log out?

True, guess the really only application of my alternative is if he simply wants to display the amount of time the user was logged in upon logout :-/