What are the limitations of using PHP to show a message during page loading compared to other technologies like JavaScript?

Using PHP to show a message during page loading has limitations because PHP is a server-side language and cannot directly interact with the user's browser. To display a message during page loading, it's better to use JavaScript, which is a client-side language that can manipulate the content of the webpage in real-time.

// This PHP code snippet will redirect the user to a new page with a message displayed during page loading
<?php
echo "<script>window.location.href='newpage.php';</script>";
?>