What are some common pitfalls to avoid when adding sponsor sections to website navigation using PHP?

One common pitfall to avoid when adding sponsor sections to website navigation using PHP is hardcoding the sponsor links directly into the navigation menu. Instead, it is better to create a separate section specifically for sponsor links to keep the navigation menu clean and easily maintainable.

// Incorrect way of adding sponsor links directly into navigation menu
<ul>
    <li><a href="home.php">Home</a></li>
    <li><a href="about.php">About</a></li>
    <li><a href="contact.php">Contact</a></li>
    <li><a href="sponsor1.php">Sponsor 1</a></li>
    <li><a href="sponsor2.php">Sponsor 2</a></li>
</ul>
```

```php
// Correct way of adding sponsor links in a separate section
<ul>
    <li><a href="home.php">Home</a></li>
    <li><a href="about.php">About</a></li>
    <li><a href="contact.php">Contact</a></li>
    <li><a href="sponsors.php">Sponsors</a></li>
</ul>

// sponsors.php
<ul>
    <li><a href="sponsor1.php">Sponsor 1</a></li>
    <li><a href="sponsor2.php">Sponsor 2</a></li>
</ul>