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Example code of fanqingxuan/container

Informations about the package container

起因

Laravel是一个很优雅的框架，这一点不容置疑，laravel实现的很松耦合，有些组件库可以在自己的非laravel项目里用(只要你的项目使用composer)，比如illuminate/database这个orm，就是一个独立的repository，我们composer执行下面的命令就可以将laravel的数据库orm安装到自己的项目了

个人对Laravel的服务容器很感兴趣，想单独拿出来用，高兴的是官方也将Container容器单独抽离出一个仓库illuminate/container，我看了下这个仓库下的composer.json文件，依赖illuminate/contracts仓库，通过阅读Container类我发现其实只依赖illuminate/contracts下的container约定，其它的约定完全不需要，也就是说illuminate/contracts仓库下面的其它契约成了多余的代码，这对我来说完全受不了，容忍不了多余没有用的代码。

因此我就单独拉了一个仓库，代码完全来自illuminate/container仓库以及illuminate/contracts仓库下Illuminate/Contracts/Container命名空间下的代码，当然为了使用composer，所以我需要改下仓库，因此命名空间变更成了自己的命名空间，其它Laravel服务容器原有相关的方法100%可用；另外有些原有的功能在手册或者教程上并没有，通过阅读代码发现了已有的功能，也罗列出了用法

安装

demo

看下面的例子

有没有发现，每一个类不再依赖具体的实现类，通过依赖注入容器实现控制反转

使用

意思是当一个类需要实现 Cache 时，应该注入 RedisCache,注入依赖项时，我们就可以使用注入Cache接口，而不需要注入具体实现，就像上面demo中的注入依赖项UserService接口，而不是具体实现

根据输出可以反省，UserService注入的是Memcache，而OrderService注入的是Redis

解析服务

使用 make 方法从容器中解析出类实例。 make 方法接收你想要解析的类或接口的名字

如果类依赖不能通过容器解析，你可以通过将它们作为关联数组作为 makeWith 、make 方法的参数注入：

容器事件

服务容器每次解析对象会触发一个事件，你可以使用 resolving 方法监听这个事件 :

PSR-11

Laravel服务容器实现了PSR-11接口，所以可以使用PSR-11接口提供的方法来获取服务

ArrayAccess

Laravel服务容器实现了ArrayAccess接口，因此可以像数组一样为容器注入服务，获取服务等操作

魔术方法

Laravel服务容器还实现了get,set魔术方法，因此我们可以用属性的方式进行服务注入和访问

Laravel服务容器的其它方法

All versions of container with dependencies

PHP Build Version
Package Version
Requires php Version ^7.3
psr/container Version ^1.0
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