php简单工厂模式【Factory】

1，工厂模式，就是根据参数的不同，返回不同类吃实例，工厂模式是创建设计模式的一种。

2，例子

Interface People{
    public function get();
}

class Man implements People{
    private $name;
    function __construct($name){
        $this->name=$name;
    }
    public function get(){
        return $this->name;
    }
}

class Woman implements People{
    private $name;
    function __construct($name){
        $this->name=$name;
    }
    public function get(){
        return $this->name;
    }
}
//简单工厂
class Simplefactory{
    public static function build($className,$args){
        $className=ucfirst($className);
        $reflection=new ReflectionClass($className);//反射类，用来创建类实例
        return $reflection->newInstance($args);
}
}

$obj=Simplefactory::build('man','张三');
var_dump($obj);//object(Man)#2 (1) { ["name"]=> string(6) "张三" }
var_dump($obj->get());//string(6) "张三"