How can PHP be integrated with CSS to create interactive elements like menus?

To integrate PHP with CSS to create interactive elements like menus, you can use PHP to dynamically generate HTML code with CSS classes that control the styling and behavior of the menu items. By using PHP to generate the HTML code for the menu, you can easily update the menu items or styles by modifying the PHP code.

<?php
$menuItems = array("Home", "About", "Services", "Contact");

echo '<ul class="menu">';
foreach ($menuItems as $item) {
    echo '<li><a href="#">' . $item . '</a></li>';
}
echo '</ul>';
?>