Access Specifiers in PHP
There are 3 types of Access Specifiers available in PHP, Public, Private and Protected.
Public - class members with this access modifier will be publicly accessible from anywhere, even from outside the scope of the class.
Private - class members with this keyword will be accessed within the class itself. It protects members from outside class access with the reference of the class instance.
Protected - same as private, except by allowing subclasses to access protected superclass members.
EXAMPLE 1: Public
EXAMPLE 2: Private
EXAMPLE 3: Protected
EXAMPLE 4: Public,Private and Protected