I want to know that is there any method in PHP by which i can call one class's method from another class object. let me clear here is one class

    class A() {
    public function showData(){
        //here is method of class A
   }
}

 // here is another class

class B(){
      public function getData(){
            //some method in class B
         }
}

  //now i create two objects

$objA= new class A();
$objB=new class B();

now i want to call this
$objB->showData();<---

is that possible .. by any how method( using public, inheritence,child parent etc...) please help me