This hook can be used for performing actions like sending notifications or making log entries after closing threads.

Call time:

In moderation.php, right after a thread has been closed by a moderator.

Hook input:

The id of the thread that has been closed (read-only).

Hook output:

None

Example code:

function phorum_mod_foo_close_thread($msgthd_id)
{
    global $PHORUM;

    // Log the closed thread id
    $PHORUM["mod_foo"]["closed_threads"][] = $msgthd_id;
    phorum_db_update_settings(array("mod_foo" => $PHORUM["mod_foo"]));
}