Is this is far as you would go regarding Object Oriented PHP or can i improve it further by putting HTML into a class? How would i go about doing that? Note: The code below is using a QuickForm by PEAR. Thanks in advance.
  <?php
    //MySQL class
    require_once('database/class.mysql.php');
    //Session class
    require_once('session/class.session.php');
    //SignUp class
    require_once('access/class.signup.php');
    //QuickForm class
    require_once('HTML/QuickForm.php');
    //PHPMailer class
    require_once('thirdparty/phpmailer/class.phpmailer.php');
    //Instantiate the MySQL class
    require_once('database/dbconnect.php');
    $db = &new MySQL($host, $dbUser, $dbPass, $dbName);
    //Instantiate the Session class
    $session = new Session;
     ?>
    <html>
        <head>
            <title>Test page</title>
        </head>
        <body>
            <?php
                //Instantiate Quickform
                $form = new HTML_QuickForm('regForm', 'POST');
                ///Header
                $form->addElement('header', null, 'Quickform tutorial example!');
                //First name
                $form->addElement('text', 'fname', 'First name:', array('size' => 30));
                $form->addRule('fname', 'Please enter your first name', 'required', null, 'client');
                //Last name
                $form->addElement('text', 'lname', 'Last name', array('size' => 30));
                $form->addRule('lname', 'Please enter your last name', 'required', null, 'client');
                //Password
                $form->addElement('password', 'pass', 'Password: ', array('size' => 30));
                //Gender
                $form->addElement('radio', 'sex', 'Gender: ', 'Male', 'male');
                $form->addElement('radio', 'sex', '', 'Female', 'female');
                //County
                $form->addElement('select', 'county', 'County:', array(
                    '0' => 'Select',
                    '1' => 'Louth',
                    '2' => 'Meath'
                ));
                //Date of Birth
                $form->addElement('date', 'dob', 'Date of Birth:', array('format' => 'dMY', 'minYear' => 1950, 'maxYear' => date('Y')));
                //Submit
                $form->addElement('submit', null, 'Submit');
                //Try to validate the form
                if ($form->validate()) {
                    echo 'Hello';
                }
                //Output the form
                $form->display();
            ?>
        </body>
    </html>