3 declare(strict_types=1);
    14     $ui = $DIC->ui()->factory();
    15     $renderer = $DIC->ui()->renderer();
    16     $request = $DIC->http()->request();
    19     $number_input = $ui->input()->field()
    20         ->numeric(
"Some Number", 
"Put in a number.")
    23     $number_input2 = $number_input->withRequired(
true)->withValue(
'');
    26     $form = $ui->input()->container()->form()->standard(
'#', [
    27         'n1' => $number_input,
    28         'n2' => $number_input2
    32     if ($request->getMethod() == 
"POST") {
    33         $form = $form->withRequest($request);
    34         $result = $form->getData();
    36         $result = 
"No result yet.";
    41         "<pre>" . print_r($result, 
true) . 
"</pre><br/>" .
    42         $renderer->render($form);