Is it possible to create static classes in PHP like in C

Question

I'm trying to make a static class in PHP behave like a C# class, so,

• On the initial call to the class, the function Object() { [native code] } is immediately called.
• No instantiation is necessary.

Something like this:

static class Hello {
    private static $greeting = 'Hello';

    private __construct() {
        $greeting .= ' There!';
    }

    public static greet(){
        echo $greeting;
    }
}

Hello::greet(); // Hello There!

 Can someone please help me with this?