PHP is a scripting language that would be installed on your server. Mysql database would store data then you would use PHP to access the data. You would use the filemanager to create the php files then write code to interact with the database. The most basic php page you could make would be a phpinfo page which will display all your variables and settings. Here what you can do:

Create a file called info.php
Insert the following data in to the file:

Access this page in a browser:

Stephen Williamson, Server Engineer