What software is needed to set up a local test environment for PHP on a Mac?

To set up a local test environment for PHP on a Mac, you will need to install a web server like Apache, MySQL for database management, and PHP itself. One popular solution for Mac users is to use MAMP (Mac, Apache, MySQL, PHP) which provides an all-in-one package for setting up a local server environment.

// No PHP code snippet needed for setting up a local test environment on a Mac.