How can a beginner in PHP ensure that the sponsor section in website navigation is properly implemented and functional?

To ensure that the sponsor section in website navigation is properly implemented and functional, a beginner in PHP can create a separate file for the sponsor section and include it in the main navigation file using PHP's include function. This allows for easy management and updating of the sponsor section without affecting the rest of the navigation.

// navigation.php

<nav>
    <ul>
        <li><a href="index.php">Home</a></li>
        <li><a href="about.php">About</a></li>
        <li><a href="services.php">Services</a></li>
        <?php include 'sponsor_section.php'; ?>
        <li><a href="contact.php">Contact</a></li>
    </ul>
</nav>
```

```php
// sponsor_section.php

<li><a href="sponsor1.php">Sponsor 1</a></li>
<li><a href="sponsor2.php">Sponsor 2</a></li>
<li><a href="sponsor3.php">Sponsor 3</a></li>