Before we move on, adding more pages to our app, let's build a simple navigational menu. Because we want the menu displayed on all the pages, we're going to put it directly in the master template.
/views/_v_template.php (shown here is just the <body> of the template):
<body>
<div id='menu'>
<a href='/'>Home</a>
<!-- Menu for users who are logged in -->
<?php if($user): ?>
<a href='/users/logout'>Logout</a>
<a href='/users/profile'>Profile</a>
<!-- Menu options for users who are not logged in -->
<?php else: ?>
<a href='/users/signup'>Sign up</a>
<a href='/users/login'>Log in</a>
<?php endif; ?>
</div>
<br>
<?php if(isset($content)) echo $content; ?>
</body>
Note how we're displaying different options based on whether a user is logged in or not.
