Our Java server hosting allows you to also install and run php applications.
There is a special directory setup for running php applications /home/yourusername/public_html/web/
You can upload your PHP applications such as wordpress or joomla into this directory. Then you can access them in your browser - for example a wordpress site via url http://yourdomain.com/web/blog/index.php
Using auto installer such as Softaculous within your siteworx:
If you decide you wish to us the auto installer to install a PHP application, just be sure to include prefix for 'In Directory' /web/whatever for example /web/blog or /web/wp