Object Oriented PHP Part-3(Inheritence)

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<h1 style="text-align: center;color: maroon;font-weight: bold; font-family: 'Mongolian Baiti'"> Object Oriented PHP Part-3(Inheritence)</h1>
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<?php

class ParentClass{

   public $fathername =" Abdur Rahim";
   public $mothername ="Khursheda Parvin";


   public function MainIn()
   {

       return "Wellcome to Tanvir Hossen Bappys Family";

   }

}


class ChildClass extends ParentClass
{

    public $sonname= "Tanvir Hossen Bappy";


}

//echo (new ChildClass)->fathername;


$object = new ChildClass;

echo $object->MainIn();


?>


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