How to use private in php

This article will explain in detail how to use private in php. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

In PHP, private is an access modifier that restricts the accessibility of decorated members, meaning "private", that is, it can only be accessed and used within the class, and the syntax is "class class name {private property or method definition}".

This article operating environment: Windows10 system, PHP7.1 version, Dell G3 computer.

What is the use of private in php

Public represents the global, and all the internal and external subclasses of the class can access it.

Private means private, and can only be used within this class

Protected means protected and can only be accessed in this class or subclass or parent class

Access control modifier

Form:

Class class name {access control modifier property or method definition;}

Their role is to "limit" the accessibility of the members they modify.

Accessibility:

Is to use the "validity" (legitimacy) of these two forms of syntax in your code:

Object-> instance property or method

Class:: static property or method

Access control modifiers, which need to be combined with the location where the grammatical form is used to determine whether they are accessible.

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