How can relative and absolute paths in PHP navigation links affect URL redirection?

Relative paths in PHP navigation links can cause issues with URL redirection if the current page's URL structure changes. To avoid this problem, it's recommended to use absolute paths in navigation links to ensure that the links always point to the correct location regardless of the current page's URL. By using absolute paths, you can prevent any unexpected redirection issues that may arise due to changes in the URL structure.

<a href="https://www.example.com/about.php">About Us</a>