How to use the protected access modifier

How the access modifiers work public protected private Access outside class? Access from subclass? Yes No No Yes Yes No

Modifier	Access outside class?	Access from subclass?
public	Yes	Yes
protected	No	Yes
private	No	No

A superclass

      class Person { 
        protected $firstName, $lastName; private $phone, $email; 
         
        // The constructor and the get and set methods are the same // as the Person class
      }

A subclass

      class Employee extends Person { 
        private $ssn, $hireDate; 
        
        // The constructor and the get and set methods are the same as the Employee class

        // This method uses the protected properties from the Person class 
        public function getFullName() { 
          return $this->lastName . ', ' . $this->firstName;
        }
      }

    Description
      Public and protected properties and methods are inherited by the subclass.
Private properties and methods are not inherited by the subclass.

    

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