简单工厂模式

//---------------------------------------------------
//进去参数（类名），出来直接就是对象，没有其他的步骤
//电影介绍的处理类
class MovieViews
{
    public function getTimes()
    {
        //返回电影介绍的浏览次数
        return 100;
    }
}

//电影种子下载的处理类
class MovieBtDowns
{
    public function getTimes()
    {
        //返回电影种子的下载次数
        return 18;
    }
}

//电影工厂
class MovieFactory
{
    //获取电影处理类的对象，参数为类名
    public function getMovieObject($className)
    {
        return new $className;
    }
}

//获取电影工厂
$movieFactory = new MovieFactory();

//电影介绍
$what = ‘MovieViews‘;
$movieObject = $movieFactory->getMovieObject($what);
echo $movieObject->getTimes();

//电影种子下载
$what = ‘MovieBtDowns‘;
$movieObject = $movieFactory->getMovieObject($what);
echo $movieObject->getTimes();

?>