Yes, we support PHP on Trax (formerly known as PHP on Rails). PHP on Trax is a PEAR module, so you can use the pear list command to see if it is already installed on your server. If it is not installed, open a support ticket with our Crew at https://done5.com/clients/submitticket.php and we can install it for you.
More Information
For more information about PHP on Trax, please visit https://github.com/phpontrax/.