How can one view PHP files offline, similar to how HTML files can be viewed in browsers like Firefox or IE?

To view PHP files offline, you can set up a local server environment on your computer using software like XAMPP, WAMP, or MAMP. These tools allow you to run PHP scripts locally and view them in your browser, similar to how HTML files are viewed. Once you have set up the local server, you can simply open the PHP files in your browser to see them in action.

<?php
// Your PHP code here
echo "Hello, world!";
?>