What software is recommended for offline testing of self-created PHP code?

When testing self-created PHP code offline, it is recommended to use a local development environment such as XAMPP, WAMP, or MAMP. These software packages provide a server environment on your computer where you can run and test PHP scripts without needing an internet connection. By setting up a local server, you can test your PHP code in a secure and controlled environment before deploying it online.

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