test1.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * @package    local_modalformexamples
 * @copyright  2019 Marina Glancy
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once('../../config.php');
require_once($CFG->libdir.'/adminlib.php');

admin_externalpage_setup('local_modalformexamples', '', [],
    new moodle_url('/local/modalformexamples/test1.php'));

$form = new \local_modalformexamples\testform();
echo $OUTPUT->header();
echo $OUTPUT->heading('Test1 - normal form');
if ($form->is_cancelled()) {
    echo "<p>Cancelled....</p>";
} else  if ($data = $form->get_data()) {
    print_object($data);
} else {
    $form->display();
}
echo $OUTPUT->footer();