Hi,

i'm using in each script:

<?
session_set_save_handler(...); //register my custom function to store session
//into a mysql database

session_start(); //session.auto_start is set to 0 in php.ini
register_shutdown("session_write_close");

$object = unserialize($_SESSION['objectname']);
//modify the object
//....
$_SESSION['objectname'] = serialize($object);
?>

When are exactly called the write and read function of my custom handler?
Is it at the session_start that read function is called?
or is it at $object = unserialize($_SESSION['objectname'])?

Is write function called at session_write_close only?
or any time $_SESSION[] is writted?

Thanks a lot, I have no clue from PHP tutorial about this...

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