<?php
class Dog{
    public $numLegs = 4;
    public $name;
    public function __construct($name){
    }


    public function bark(){
        return "Woof!";
    }
    public function greet(){
        return "My name is ".$this->name;
    }

}

$dog1 = new Dog('Barker');

echo $dog1->greet();

?>