https://github.com/mix-php/event
Event dispatcher based on PSR-14 standard / 基于 PSR-14 标准的事件调度库
https://github.com/mix-php/event
event event-dispatcher mix
Last synced: 11 months ago
JSON representation
Event dispatcher based on PSR-14 standard / 基于 PSR-14 标准的事件调度库
- Host: GitHub
- URL: https://github.com/mix-php/event
- Owner: mix-php
- Created: 2019-08-20T08:51:30.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2021-07-21T07:37:17.000Z (over 4 years ago)
- Last Synced: 2025-04-11T03:39:53.784Z (12 months ago)
- Topics: event, event-dispatcher, mix
- Language: PHP
- Homepage: https://openmix.org/mix-php
- Size: 6.84 KB
- Stars: 1
- Watchers: 2
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
> OpenMix 出品：[https://openmix.org](https://openmix.org/mix-php)
# Mix Event
Event dispatcher based on PSR-14 standard
基于 PSR-14 标准的事件调度库
## Installation
```
composer require mix/event
```
## 定义一个事件
事件可以为任意类，我们以 SQL 执行事件调度来举例
```php
class DatabaseEvent
{
public $time = 0;
public $sql = '';
public $bindings = [];
}
```
## 定义一个监听器
监听器是用户编写处理事件逻辑代码的地方，`events` 方法返回一个要监听的事件类的数组，当这些事件触发时，会调用 `process` 方法
```php
class DatabaseListener implements Mix\Event\ListenerInterface
{
public function events(): array
{
// 要监听的事件数组，可监听多个事件
return [
DatabaseEvent::class,
];
}
public function process(object $event): void
{
// 事件触发后，会执行该方法
}
}
```
## 创建调度器
创建调度器，并传入监听器，可传入多个
```php
$dispatcher = new Mix\Event\EventDispatcher(new DatabaseListener());
```
## 触发事件
在事件产生的位置触发事件，当后面需要对该事件扩展业务逻辑时，只需在监听器中增加代码即可，达到不污染正常业务流程的目的
```php
$event = new DatabaseEvent();
$event->time = 10;
$event->sql = 'select * from users';
$dispatcher->dispatch($event);
```
## License
Apache License Version 2.0, http://www.apache.org/licenses/