Class visibility – PHP

PHP class visibility refers to the access level of class properties and methods. There are three visibility modifiers in PHP: public, protected, and private.

Public visibility means that the property or method can be accessed from anywhere, both inside and outside the class.

Protected visibility means that the property or method can only be accessed from within the class and its subclasses.

Private visibility means that the property or method can only be accessed from within the class itself.

By default, class members have public visibility. Developers use visibility modifiers to restrict access to certain properties and methods and prevent unwanted manipulation of data.