What is the recommended way to open PHP files in a browser to ensure they are processed correctly?

When opening PHP files in a browser, it is important to ensure that the files are processed by the PHP interpreter rather than being displayed as plain text. The recommended way to open PHP files in a browser is to run a local server environment like XAMPP or WampServer, which will properly execute the PHP code and display the output in the browser.

<?php
// Sample PHP code snippet to display "Hello, World!" in the browser
echo "Hello, World!";
?>