What are some online tools available for testing simple PHP code snippets?

When testing simple PHP code snippets, there are several online tools available that can help streamline the process. These tools allow you to quickly input your PHP code, run it, and see the output without the need to set up a local development environment. Some popular online tools for testing PHP code snippets include PHPFiddle, Codepad, and WritePHPOnline.

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