pH7CMS is a Professional Social CMS to build an Online Dating Services or Social Network Websites. The software is completely written in OOP (Object-Oriented PHP) with the MVC programming pattern (Model-View-Controller). It is designed with the KISS principle in mind and the all source code can be read and understood in minutes. For the best flexibility, the script also uses PDO (PHP Data Objects) abstraction which allows the choice of the database. The principle of the "pH7CMS's development" is DRY (Don't Repeat Yourself) aimed at reducing repetition of information of all kinds (not duplicate code). In addition, it is fast, low-resource-intensive, extremely powerful and very secure.