class DbAction{
  public $query;
  public $result;
  private $connection;
  public $num_rows;
  private $host;
  private $db_user;
  private $db_password;
  private $db_name;

  /*
    Constructo Starts
  */
  public function __construct(){
    $this -> connection;
    $this -> query = '';
    $this -> result = '';
    $this -> numRows = '';
    $this -> host = "localhost";
    $this -> db_user = "root";
    $this -> db_password = "";
    $this -> db_name = "osadnicy";
  }


  /*
    Starts Connection
  */
  public function connection(){

    $this -> connection = new mysqli($this -> host, $this -> db_user, $this -> db_password, $this -> db_name );

    if($this -> connection == true){
      return true;
    } else {
      $this -> errorRaport();
      return false;
    }

  }



  /*
    Returns result
  */
  public function getResult($query){
    $this -> query = $query;

    if ($this -> result = mysql_query($this-> query)==true) {
      return $this -> result;
    } else{
      return "Nie działa";
    }
  }


  public function row(){
    if($this -> numRows =  mysql_num_rows( $this -> result)){
      return $this -> numRows;
    }else{
      return false;
    }

  }

}
$db = new DbAction();
$db -> query("SELECT * FROM `uzytkownicy`");
var_dump($db -> result);