PHP - 使用静态属性和方法

Question

If I have a class called Sales, which has only static attributes and methods: - What kind of constructor should I write for this class? - How can I make calls to the methods and attributes of this class inside of its own scope?

Answer 1

You can use self::method(); operator to call it's own methods and attributes..

Constructor

private function __construct()
{
   // Your "heavy" initialization stuff here
}