当有多个用户数据时，怎么用类去处理多个

Question

class usermodel{

public $userList;

   public $id;

public $name;

public function _init(){  

$this->userList=include_once './123.php';

}

public function get_name(){   

return $this->name;       

}

public function get_user_info($userid){

foreach($this->userList as $user){

if($userid==$user['id']){

return $user;

}

}

}

}

$model=new usermodel();

$model->_init();

$userinfo=$model->get_user_info(3);

var_dump($userinfo);

在这道题上，怎么用工具处理多个数据永恒