What is the difference between PHP and JavaScript in terms of execution on the server and client side?

PHP is a server-side scripting language, meaning it is executed on the server before the result is sent to the client's browser. On the other hand, JavaScript is a client-side scripting language, meaning it is executed on the client's browser. This distinction is important to understand when deciding which language to use for different functionalities on a website.

<?php
// PHP code snippet
echo "Hello, World!";
?>