Leaving a window

[victor123]

Hi,

I would like to execute certain code only when a user leaves a window by closing the navigator. I have been looking at some events such as onUnload, but that does not do what i want since it executes every time the user leaves the window (going to another page and such).

Is there any way of performing this?

Thanks in advance.

[gesf]

Hunn... only using sessions.
Use session_set_save_handler() to set your session handler functions and then use the "session close" method for what you need.

[victor123]

Hmmm... but when would that "session close" method be called? you have to call it explicitly or is it called automatically when the navigator window is closed?

Thanks again.

[gesf]

It is called automatically.
Example:

Code: Select all

<?php

// sess_destroy function somewhere
// in your files, included or not...
function sess_destroy($key) {
       $query = "DELETE FROM sessions WHERE sessionID = '$key'";
       mysql_query($query);
       return true;
}

// ....

// Setting session handler functions
session_set_save_handler (
     "sess_open",
     "sess_close",
     "sess_read",
     "sess_write",
     "sess_destroy",
     "sess_gc"
);

session_start();

// do some stuff ...

session_destroy();

?>

Please take a look at the session_set_save_handler() page of the manual.