主要的思想是利用call_user_func_array()和容器结合使用的。

核心代码，理解都在注释中：

<?php//reqeuestFacade.php    namespace facade{        class Request extends Facade{            public function getFacadeName(){                return 'request';            }        }    }?><?php//facade.phpnamespace facade{    class Facade{        public static function createFacade(){            $class = static::class; //在这个获取的$class其实是facade\reqeust            //在这里利用static::得到getFacadeName，返回真正的request的变量名            $facadeClass = static::getFacadeName();            if ($facadeClass) {                $class = $facadeClass;            } elseif (isset(self::$bind[$class])) {                $class = self::$bind[$class];            }            //echo $class;            利用容器去获取reqeust，而不是facade\reqeust            return \Container::get($class);        }            public static function __callStatic($method, $params)        {            return call_user_func_array([static::createFacade(), $method], $params);        }    }}?>

下面测试代码

reqeust.php

<?phpclass Request{    public $name = 'Real Request';    public  function sayName(){        echo $this->name;    }}?>

test.php

<?php    use facade\Request;    include "Container.php";    include "Facade.php";    include "RequestFacade.php";    include "Request.php";    Request::sayName();?>

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