How can PHP beginners effectively organize their code to include menus on their site?

To effectively organize their code and include menus on their site, PHP beginners can create a separate PHP file for their menu code and then include it in their other PHP files where needed using the include or require function.

// menu.php
<ul>
    <li><a href="index.php">Home</a></li>
    <li><a href="about.php">About</a></li>
    <li><a href="contact.php">Contact</a></li>
</ul>

// index.php
<?php
include 'menu.php';
?>

// about.php
<?php
include 'menu.php';
?>

// contact.php
<?php
include 'menu.php';
?>