php observer

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,

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 (

"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.

PHP design pattern series-Observer pattern (Observer) 1. Pattern Definition The Observer Mode is also called the publish/subscribe mode. this mode is used to implement the publish/subscribe function for objects. once the status of a subject object

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

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