What are the limitations of using PHP to control browser behavior, and what alternative methods can be used?

When using PHP to control browser behavior, one limitation is that PHP is a server-side language and cannot directly interact with the client-side browser. To overcome this limitation, you can use JavaScript, which is a client-side language that can manipulate the browser's behavior.

// PHP code to redirect to a new page using JavaScript
echo '<script>window.location.href = "newpage.php";</script>';