When you define a class completely in PHP, you can add properties (member variables) to it. When you add member variables to a native C++ class however, you better use regular C++ member variables for that, instead of PHP variables. Native variables have an immensely better performance than PHP variables, and it would be insane to store integers or strings in Php::Value objects if you can store them in int's and std::string objects as well.
To access these member variables you could create getX() and setX() methods, or alternatively implement __get() and __set() methods if you want to make your native member variables look like public or protected properties.
I can not imagine that there is anyone in the world who would like to create a native class, with regular public PHP properties on it. But still, in this article we explain how you can do that.
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