How can a PHP developer effectively collaborate with frontend developers to implement interactive navigation elements on a website?

To effectively collaborate with frontend developers to implement interactive navigation elements on a website, PHP developers can use AJAX to dynamically load content without refreshing the entire page. This allows for seamless user interactions and a smoother browsing experience.

// PHP code to handle AJAX request for loading content dynamically

if(isset($_POST['page'])) {
    $page = $_POST['page'];

    // Code to fetch content based on the requested page

    // Return the fetched content to the frontend
    echo $content;
}