php 中的 DI 依赖注入

<?phpclasscontainer{
private$adapter;
publicfunction__construct()
    {
$this->adapter=newadapter();
    }
}

<?phpclasscontainer{
private$adapter;
publicfunction__construct(adapter$adapter)
    {
$this->adapter=$adapter;
    }
}

<?phpclasscontainer{
public$instance= [];
publicfunction__set($name, $value)
    {
$this->instance[$name] =$value;
    }
}
$container=newcontainer();
$container->adapter=newadapter();
$container->autofelix=newautofelix();

<?phpclasscontainer{
public$instance= [];
publicfunction__set($name, $value)
    {
$this->instance[$name] =$value;
    }
}
classadapter{
public$name='我是调度器';
}
$container=newcontainer();
$container->adapter=newadapter();
classautofelix{
private$container;
publicfunction__construct(container$container)
    {
$this->container=$container;
    }
publicfunctionwho($class)
    {
return$this->container->instance[$class]->name;
    }
}
$autofelix=newautofelix($container);
$who=$autofelix->who('adapter');
var_dump($who); //我是调度器

<?php$container=newcontainer();
$container->adapter=newadapter();
//高阶优化$container=newcontainer();
$container->adapter=function () {
returnnewadapter();
};