event dispatcher php

---- Eventdispatcher component usage Introduction: Object-Oriented Programming has gone a long way to ensure code scalability. It creates classes with specific responsibilities to make them more flexible. developers can create subclasses to change

Original: 8705313 Event-driven PHP event-driven programming--------------------------------------------------------------------------PHP: (http ://hi.baidu.com/yiqing95)*Event-driven is very common in desktop applications, such as when you click a

namespace Illuminate\events;use exception;use reflectionclass;use illuminate\support\str;use Illuminate\Container\ Container;use Illuminate\contracts\broadcasting\shouldbroadcast;use illuminate\contracts\broadcasting\ Shouldbroadcastnow;use

Introduction To consider a problem, now you want to provide a plug-in system for your project, Plug-ins can add some methods, or do something before or after some method is executed without interfering with other plug-ins. To implement this system,

EventDispatcher event distribution component and android event distribution mechanism Introduction Now you want to provide a plug-in system for your project. You can add some methods to the plug-in, or do something before or after some methods are

    /**     * fire an event and call  the listeners.     *     *  @param    string|object   $event      *  @param   mixed  $ payload     *  @param   bool   $halt       *  @return  array|null     */   //     public function fire ($event,  $payload  = 

/** * Broadcast the given event class. * * @param \illuminate\contracts\broadcasting\shouldbroadcast $event * @return void */protected functionbroadcastevent($event) {// Why use this function name is broadcast//event class means event

In a plug-in system, plug-in a adds a new method without affecting other plug-ins, or makes some preparations before running a method, it is not easy to implement extension through inheritance. Due to the association between plug-ins, changes to

   /**    * Resolve the subscriber instance.     *    *  @param   object|string   $subscriber      *  @return  mixed    */   protected function  resolvesubscriber ($subscriber)    {       if  (is_ String ($subscriber))  {// check string         

    /**     * Create the class based  event callable.     *     *  @param    string   $listener      *  @param   \illuminate\container\ container   $container      *  @return  callable      */    protected function createclasscallable ($listener,  $