PHP OOP：从继承自父属性的子/子访问父属性

Question

so the code is : DAO class

    abstract class DAO  
    {   
    protected $db; 
    protected $SQL_host='localhost';
    protected $SQL_port='3306';
    protected $SQL_dbname='projet'; 
    protected $SQL_login='root'; 
    protected $SQL_password='';

    protected function __construct()
    {
        $this->setDb(new PDO('mysql:host='.$this->SQL_host.';port='.$this->SQL_port.';dbname='.$this->SQL_dbname, $this->SQL_login, $this->SQL_password)) ;
    }

    protected function setDb(PDO $bdd)
    {
        $this->db = $bdd ;
    }


    }

and child UserDAO class

     class UserDAO extends DAO 
     {
     public function __construct()
     {
         parent::__construct();
     }
     }

When UserDAO child class inherits from parent DAO, does the child get parent's attributes ? If not, how can I make so ?

I've been looking around and they mostly tell to use get function but that's really not what i'm trying to do. Thanks for your help

Answer 1

Yes, the subclass inherits the parent class's members.