在thinkphp中实现facade的方法

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.php
namespace facade{
 class Facade{

 public static function createFacade(){
 $class = static::class; //在这个获取的$class其实是facade
eqeust
 //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 $class;
 利用容器去获取reqeust，而不是facade
eqeust
 return Container::get($class);
 }
 
 public static function __callStatic($method, $params)
 {
 return call_user_func_array([static::createFacade(), $method], $params);
 }
 }
}


?>

下面测试代码

reqeust.php

<?php

class Request{
 public $name = 'Real Request';

 public function sayName(){
 echo $this->name;
 }

}

?>

test.php

<?php

 use facadeRequest;

 include "Container.php";
 include "Facade.php";
 include "RequestFacade.php";
 include "Request.php";

 Request::sayName();

?>

推荐教程：thinkphp教程