This hook can be used for performing tasks (like logging and notification) after a successful user registration.

Call time:

In register.php, right after a successful registration of a new user is done and all confirmation mails are sent.

Hook input:

An array containing the user data of the newly registered user (read-only).

Hook output:

None

Example code:

function phorum_mod_foo_after_register($data)
{
    global $PHORUM;

    // Keep a log of user registrations by user id with
    // the IP address of the computer they used to
    // register
    $PHORUM["mod_foo"]["user_registrations"][$userdata["user_id"]] = $_SERVER["REMOTE_ADDR"];

    phorum_db_update_settings(array("mod_foo" => $PHORUM["mod_foo"]));
}