In what scenarios would it be more appropriate to use JavaScript over PHP for URL manipulation in navigation elements?

When dealing with dynamic content or user interactions on a webpage, it is more appropriate to use JavaScript for URL manipulation in navigation elements. JavaScript allows for real-time updates to the URL without requiring a page reload, making it ideal for single-page applications or websites with complex navigation. PHP, on the other hand, is better suited for server-side tasks and processing form submissions.

// PHP code snippet for basic URL redirection
$url = "https://www.example.com/newpage";
header("Location: $url");
exit();