Mysql Classes 2 (Opgelost)

<?php
class db
{
 	protected $connect;
	protected $link;
	protected $user = 'superdumb';
	protected $pass = '******';
	protected $server = 'localhost';
	protected $query;
	protected $obj;
	public $output;
	
	function __construct($db_name)
   	{
    	print ' Constructor treedt op ...';
    	$this->connect = mysql_connect($this->server,$this->user,$this->pass);
	    	if(!($this->connect))
	       	{
				echo 'Geen connectie... ';
				echo mysql_error();
				die();	
			}
       		echo ' Connectie is er...';
       	$this->link = mysql_select_db($db_name,$this->connect);
	    	if(!($this->link))
	       	{
				echo 'Database niet geselecteerd... ';
				echo mysql_error();
				die();	
			}
       		echo ' Database link is er...';       	
   	}

	function getdata()
	{

	        
	        function __construct($id,$table,$what)
	        {
	                $this->query = mysql_query("SELECT ".$what." FROM ".$table." WHERE id=".$id);
	                if(!($this->query))
	                {
	                                echo 'Query niet uitgevoerd';
	                                echo mysql_error();
	                                die();  
	                }       
	        echo ' Query uitgevoerd';
	        
	        while ($this->obj = mysql_fetch_object($this->query))
	                {
						$this->output = $this->obj->$what;
	                }
	        }
	                
	}
}
?>

<?php
class db
{
 	protected $connect;
	protected $link;
	protected $user = 'superdumb';
	protected $pass = '******';
	protected $server = 'localhost';
	protected $query;
	protected $obj;
	public $output;
 
	function __construct($db_name)
   	{
    	print ' Constructor treedt op ...';
    	$this->connect = mysql_connect($this->server,$this->user,$this->pass);
	    	if(!($this->connect))
	       	{
				echo 'Geen connectie... ';
				echo mysql_error();
				die();	
			}
       		echo ' Connectie is er...';
       	$this->link = mysql_select_db($db_name,$this->connect);
	    	if(!($this->link))
	       	{
				echo 'Database niet geselecteerd... ';
				echo mysql_error();
				die();	
			}
       		echo ' Database link is er...';       	
   	}
 
	function getdata()
	{
 
 
	        function __construct($id,$table,$what)
	        {
	                $this->query = mysql_query("SELECT ".$what." FROM ".$table." WHERE id=".$id);
	                if(!($this->query))
	                {
	                                echo 'Query niet uitgevoerd';
	                                echo mysql_error();
	                                die();  
	                }       
	        echo ' Query uitgevoerd';
 
	        while ($this->obj = mysql_fetch_object($this->query))
	                {
						$this->output = $this->obj->$what;
	                }
	        }
 
	}
}
?>

<?php 
require('lib/mysql.php');
$db1 = new db('superdumb_db');
$db1->getdata('1','tbl_users','firstname');
echo $db1->output;
?>

<?php 
require('lib/mysql.php');
$db1 = new db('superdumb_db');
$db1->getdata('1','tbl_users','firstname');
echo $db1->output;
?>

$this->output = $this->obj->$what;

$this->output = $this->obj->$what;