Překontrolujete mi správnost navržené struktury objektu?

<?php
class MySQL{
  private $charset,
          $hostname,
          $username,
          $password,
          $database,
          $resource_id,
          $db_selected,
          $fObj_result,
          $query_result;
  
  public function __construct($host="",$user="",$pwd="",$db="",$charset=""){
    if(empty($host)) throw new Exception("MySQL: Hostname required.");
    if(empty($user)) throw new Exception("MySQL: Username required.");
    if(empty($pwd))  throw new Exception("MySQL: Password required.");
    if(empty($db))   throw new Exception("MySQL: Database name required.");
    if(empty($charset)) $charset = "utf8";
    $this->charset      = $charset;
    $this->hostname     = $host;
    $this->username     = $user;
    $this->password     = $pwd;
    $this->database     = $db;
    $this->db_selected  = false;
    $this->resource_id  = false;
    $this->query_result = false;
    $this->fObj_results = false;
  }
  
  public function Connect(){
    if($this->resource_id !== false) return $this->resource_id;
    $this->resource_id = mysql_connect($this->hostname,$this->username,$this->password);
    return $this->resource_id;
  }

  public function SelectDB($db){
    if($this->resource_id === false) throw new Exception("MySQL::SelectDB: Not connected to server.");
    if(empty($db)) $db = $this->database;
    $this->db_selected = mysql_select_db($db, $this->resource_id);
    mysql_set_charset($this->charset);
    return $this->db_selected;
  }
  
  public function Query($query_input){
    if($this->resource_id === false) throw new Exception("MySQL::Query: Not connected to server.");
    if($this->db_selected === false) throw new Exception("MySQL::Query: No database selected.");
    if(empty($query_input)) return false;
    $this->query_result = mysql_query($query_input,$this->resource_id);
    return $this->query_result;
  }
  
  public function FetchObject($result){
    if(empty($result)) $result = $this->query_result;
    if($result === false) return false;
    $temp_array = Array();
    while($fObj = mysql_fetch_object($result)){
      $temp_array[] = $fObj;
    }
    $this->fObj_results = new stdClass;
    foreach($temp_array as $k=>$v) $this->fObj_results->$k = $v;
    return $this->fObj_results;
  }
  
  public function NumRows($result){
    if(empty($result)) $result = $this->query_result;
    if(empty($result)) return false;
    return mysql_num_rows($result);
  }
  
  public function GetFetchedObj(){
    return $this->fObj_results;
  }
  
  public function Close(){
    if($this->resource_id !== false){
      mysql_close($this->resource_id);
      $this->resource_id = false;
      $this->db_selected = false;
      return true;
    }
    else return false;
  }
  
  public function __destruct(){
    if($this->resource_id !== false) mysql_close($this->resource_id);
    unset($this->hostname);
    unset($this->username);
    unset($this->password);
    unset($this->database);
    unset($this->resource_id);
    unset($this->db_selected);
    unset($this->fObj_result);
    unset($this->query_result);
  }
}
?>