I am wondering if it would be possible to have a session cleanup event hook
in future versions of PHP.
I imaging that it would work like this:
<?php
include( 'inc/my_functions_or_classes_library.inc.php' );
session_start();
function _my_session_cleaup( $_session_id ){
file_put_contents( 'log/session_clean.log', 'cleaning session up id; '
.. $_session_id );
//access session variable cart_id
file_put_contents( 'log/session_clean.log', 'cleaning session cart; '
.. $_SESSION['cart_id'] );
//do something here that removes the cart from the database etc...
}
session_cleanup_register( ' _my_session_cleaup', $_store_includes=true,
$log_to_file='log/session_clean-%Y-%m-%d.log' );
?>
As I see it, the process that cleans up old sessions in the background
would find the function serialized in the session file along with some
information about the environment in which the function was set. If the
function was registered with $_store_includes=true, then any include files
that were loaded at the time of the registration will be remembered and
stored in the session file.
PHP would then generate a temporary console script and run it as if in the
same directory as when the registration was done. Any output would append
to or open the $log_to_file path with date parameters dedeuced . It would
include the files that were included when registered (if
$_store_includes=true) and run the following:
!#/usr/bin/php
<?php
//get the session file and unserialize its content and set to $_SESSION and
make it global
include( 'inc/my_functions_or_classes_library.inc.php' ); //found from the
session file environment settings stored
function _my_session_cleaup( $_session_id ){
echo 'cleaning session up id; ' . $_session_id;
//access session variable cart_id
echo 'cleaning session cart; ' . $_SESSION['cart_id'];
//do something here that removes the cart from the database etc...
}
_my_session_cleaup( SESSION_ID_BEING_CLEANEDUP );
?>
Once completed, the session cleanup would destroy the session file.
