To whom it may concern:

The link provided by the OP contains a version of the PHP Poker script that has been fully licensed by the copyright holders.

If you have any questions, feel free to reach out to me directly at: support@phppoker.net

Kind Regards,
Aron Prins
PHPPoker.net
OnlinePokerScript.com

Update: 03/25/2018

I can confirm that it is OK to purchase a copy of the script from this seller. Appropriate agreements have been made and the seller is now fully AUTHORISED to sell this script.

Regards,
Aron