What are some recommended tools or programs for viewing and editing PHP code effectively?

To view and edit PHP code effectively, it is recommended to use code editors or IDEs specifically designed for PHP development. Some popular tools include Visual Studio Code, PHPStorm, Sublime Text, and Atom. These tools provide features such as syntax highlighting, code completion, debugging capabilities, and integration with version control systems.

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