observer pattern in php

PHP design pattern-Observer pattern (Observer) Detailed introduction and code example. [Intention] defines a one-to-many dependency between objects. when the state of an object changes, all objects dependent on it are notified and automatically

This article mainly introduces the Observer mode (Observer) of PHP design mode in detail and code examples. if you need it, refer [Intention] Defines a one-to-many dependency between objects. when the status of an object changes, all objects

[Intention] Defines a one-to-many dependency between objects. When the status of an object changes, all objects dependent on it are notified and automatically updated. [GOF95] is also called the Publish-Subscribe mode and Model-View Mode) mode,

"Intent" Defines a one-to-many dependency between objects, and when an object's state changes, all objects that depend on it are notified and automatically updated "GOF95", also known as publish-subscribe (publish-subscribe) mode, model-view (model-

PHP Design Pattern Observer Pattern example, PHP design pattern Observer First understand the concept of the Observer pattern: an object is made observable by adding a method that allows another object, the observer to register itself. When an

PHP design pattern: Observer Pattern example, php design pattern observer First, understand the concept of observer mode: an object is made observability by adding a method (This method allows another object, that is, the observer registers himself.

Intention Defines a one-to-many dependency between objects, and when the state of an object changes, all objects that depend on it are notified and automatically updated "GOF95", also known as publish-subscribe (publish-subscribe) mode, model-view (

Reprint Please specify source: https://www.cnblogs.com/luohanguo/p/7825656.html1, the initial understanding of the definition of the Observer pattern:A one-to-many dependency is defined between objects so that when an object changes state, the

PHP design pattern-Observer pattern Concept The observer mode is a behavior mode that defines a one-to-many dependency between objects so that when the state of an object changes, all objects dependent on it are notified and automatically refreshed.

The Observer pattern of php pattern design is the fifth article I wrote "php pattern design. The previous four articles continue to learn and deepen their understanding. today, I think it is very easy to understand the observer model. This may be