$handlers = array();
foreach (get_fast_modinfo($COURSE->id)->get_cms() as $cm) {
    $name = $cm->name;
    $link = $cm->url;
    $mform = new simplehtml_form($name, $link);
    array_push($handlers, $mform);
    $mform->set_data($toform);
    $html = $mform->render();
}

foreach ($handlers as $h) {
    if ($h->get_data()) {
        echo('prints only the submit data of the first. WHY???');
        var_dump($h->get_data());
    }
}

$this->content = new stdClass;
$this->content->text = $html;
return $this->content;