gistfile1.php

<?php

$di->set('current_user', function() use ($di) {
    $session = $di->get('session');
    $segment = $session->segment;
    if($segment->AUTHENTICATED) {
        $slave = $di->get('slave');
        $g = new Application\Model\User\Gateway(new Application\Model\User\Storage($slave));
        return $g->loadUser($segment->user_id);
    }

    return false;
});