What are some best practices for handling navigation menus with PHP to ensure smooth user experience?

Issue: When handling navigation menus with PHP, it's important to ensure a smooth user experience by efficiently loading and displaying menu items based on the user's permissions. PHP Code Snippet:

// Example code for handling navigation menus with PHP

// Check user permissions to determine which menu items to display
if($user->isAdmin()) {
    $menuItems = array(
        'Home' => 'index.php',
        'Dashboard' => 'dashboard.php',
        'Admin Panel' => 'admin.php'
    );
} else {
    $menuItems = array(
        'Home' => 'index.php',
        'Dashboard' => 'dashboard.php'
    );
}

// Display the navigation menu
echo '<ul>';
foreach($menuItems as $label => $url) {
    echo '<li><a href="' . $url . '">' . $label . '</a></li>';
}
echo '</ul>';