IOC注入反轉思路-僅供參考

<?php

class Db
{

    public function __construct()
    {

    }

    public function connect()
    {
        return "連線DB";
  }
}

class Ioc
{
    public static $reg = [];

  /**
 * @func 新增一個反轉的物件到容器中
  * @param $name
  * @param Closure $resolved
  */
  public static function register($name, Closure $resolved)
    {
        static::$reg[$name] = $resolved;
  }

    /**
 * @func 根據name返回實類
  * @param $name
  * @return mixed
 */  public static function resolve($name)
    {

        if (static::register($name)) {
            $obj = static::$reg[$name];
            return $obj();
        }
    }
}

//注入
//第二個引數是閉包
Ioc::register('db', function () {
    new Db();
});

//反轉
$db = Ioc::resolve('db');
$db->connect();

本作品採用《CC 協議》，轉載必須註明作者和本文連結