In what files or sections of a PHP-based website should users look to modify links for effective navigation?

To modify links for effective navigation on a PHP-based website, users should look for the files or sections that contain the navigation menu code. Typically, these can be found in header.php, footer.php, or a separate navigation.php file. By updating the links in these files, users can ensure that visitors can easily navigate through the website.

// Example code snippet to modify navigation links in header.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>
        <li><a href="contact.php">Contact</a></li>
    </ul>
</nav>