PHP 类与对象的含义,自定义类于实例化,属性私有化,通过公共接口来进行访问

class GirlFriend1
{

    private $name; 姓名
    private $sex; 性别
    private $weapon=[];兵器
    private $data=[]; 属性收集器

    public function __construct($name,$sex,array $weapon)
    {
        $this->name=$name;初始化name为$name
        $this->sex=$sex;初始化sex为$sex
        $this->weapon=$weapon;初始化weapon为$weapon
    }

    public function __get($name)
    {
        $msg=null;
        if(isset($this->$name)){    是否有$name
            $msg=$this->$name;
        }elseif(isset($this->data[$name])){    data[]是否有$name
            $msg=$this->data[$name];
        }else{
            $msg='无此属性';
        }
        return $msg;
    }

    public function __set($name, $value)
    {
        $this->name=$value;
    }
}
引入CirlFriend1类
require ('class/GirlFriend1.php');

$girlfriend1=new GirlFriend1('赵云','男',['青釭剑','亮银枪']);
$girlfriend1->name='赵子龙';//给name的值为赵子龙；
echo $girlfriend1->name='常山';