Protecting variables and functions? Like C#

I am a huge fan of php but i am kinda scared by c# i really like it's ability to make functions and variable not accessible and therefore force the user to use a function instead of accessing it indirectly. I am talking here about class talk { private function bla() { } } $t = new talk(); $t->bla(); /* Produces an error cuz of calling a private function */ Is something like that gonna be implemented in the future? And maybe with a setting or somethgin, PHP strict=true? i don't know.. Warm regards, Emile Bosch