Simple Login Code in PHP for Symfony

Page::loginSuccess.php
url: /login.html

<?php

if ($sf_flash->has('msg')) {
echo $sf_flash->getRaw('msg');
}
?>

<h1> <center> Login Page</center></h1>

<?php include_partial('global/top_menu');?>

<?php echo form_tag('@prepareLogin', array('method'=>'post', 'id'=>'frm1')); ?>

<table>
<tr>
<th> UserName: </th>
<td> <?php echo input_tag('username', '', array('size'=>20, 'maxsize'=>50)) ?> </td>
</tr>
<tr>
<th> Password: </th>
<td> <?php echo input_password_tag('password', '', array('size'=>20, 'maxsize'=>50));?> </td>
</tr>
<tr>
<td colspan="2" align="center"> <?php echo submit_tag('Submit', ''); ?> </td>
</tr>

</table>

</form>

<?php
//var_dump(@$res);
//echo $user . ": " . $pass;

// echo '<strong> Welcome!, '. $sf_user->getAttribute('authorName') . '</strong>';
echo "<p>". @$msg ."</p>";

?>
<?php if ($sf_request->hasErrors()): ?>
<p>The data you entered seems to be incorrect.
Please correct the following errors and resubmit:</p>
<ul>
<?php foreach($sf_request->getErrors() as $name => $error): ?>
<li><?php echo $name ?>: <?php echo $error ?></li>
<?php endforeach; ?>
</ul>
<?php endif; ?>

<?php
public function executeLogin() {

sfView::SUCCESS;
}

public function executePrepareLogin()
{
if ($this->getRequest()->getMethod() != sfRequest::POST) {
sfView::SUCCESS;
}
else {
$usr  =  $this->getRequestParameter('username');
$pwd  =  $this->getRequestParameter('password');

$pwd = md5($pwd);

$c = new Criteria();
$c->add(AuthorPeer::USERNAME, $usr);
$c->add(AuthorPeer::PASSWORD, $pwd);

$results = AuthorPeer::doSelect($c);

if ($results) {

foreach ($results as $author) {

$this->setFlash('msg', 'Login Successful.');
$this->getUser()->setAuthenticated(true);
$this->getUser()->setAttribute("logged", true);
$this->getUser()->setAttribute("authorName", $author->getName());
$this->getUser()->setAttribute("authorId", $author->getId());

// Forward
$this->redirect ('main/list'); // module + '/' + action (listSuccess.php)
}

}
else {
$this->setFlash('msg', 'Username/Password is wrong. Try Again!');
$this->getRequest()->setError('userName', 'The user Name field cannot be left blank');
//$this->redirect ('main/login');
$this->forward ('main', 'login');

}
}

return sfView::NONE;
}
?>

login_page:
url:    /login
param:  { module: main, action: login }

prepareLogin:
url:  /pLogin
param:  { module: main, action: prepareLogin }