views/scripts/user/user.phtml

<br /><br />
<div id="view-content">
    <p>View script for controller <b>User</b> and undefined script/action name (rendered via _call method) <b><?php echo $this->username; ?></b></p>
</div>
<br /><br />
<?php
if(!empty($this->username)){
    echo $this->username,'<br />';
}
?>
<p>User Form</p>
<form method="post">
    <input type="text" name="data" /><br />
    <input type="submit" value="submit" /><br />
</form>