[UD2008]

Hi there, I've used the tutorial to create the basic for an intranet, but I keep getting an error. I know others had that problem aswell, I've looked through the forum for a solution but nothing works. All the solutions are solved (I checked the code and nothing seems wrong).

The error I get is this:

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in C:\xampp\htdocs\intranet test\includes\DbConnector.php on line 50

So here I post the code I have:
DbConnector.php

<?php
////////////////////////////////////////////////////////////////////////////////////////
// Class: DbConnector
// Purpose: Connect to a database, MySQL version
///////////////////////////////////////////////////////////////////////////////////////
require_once ('SystemComponent.php');

class DbConnector extends SystemComponent {

var $theQuery;
var $link;

//*** Function: DbConnector, Purpose: Connect to the database ***
function DbConnector(){

	// Load settings from parent class
	$settings = SystemComponent::getSettings();

	// Get the main settings from the array we just loaded
	$host = $settings['dbhost'];
	$db = $settings['dbname'];
	$user = $settings['dbusername'];
	$pass = $settings['dbpassword'];

	// Connect to the database
	$this->link = mysql_connect($host, $user, $pass);
	mysql_select_db($db);
	register_shutdown_function(array(&$this, 'close'));

}

//*** Function: query, Purpose: Execute a database query ***
function query($query) {
	$this->theQuery = $query;
	return mysql_query($query, $this->link);
}

//*** Function: getQuery, Purpose: Returns the last database query, for debugging ***
function getQuery() {
	return $this->theQuery;
}

//*** Function: getNumRows, Purpose: Return row count, MySQL version ***
function getNumRows($result){
	return mysql_num_rows($result);
}

//*** Function: fetchArray, Purpose: Get array of query results ***
function fetchArray($result) {
	return mysql_fetch_array($result);
}

//*** Function: close, Purpose: Close the connection ***
function close() {
	mysql_close($this->link);
}


}
?>

Here the viewarticles.php:

<?php
// Require the database class
require_once('includes/DbConnector.php');

// Create a new DbConnector object
$connector = new DbConnector();

// IMPORTANT!!! Validate the ID number. See next article

// Execute the query to retrieve the selected article
$result = $connector->query('SELECT title,thearticle FROM cmsarticles WHERE ID = '.$_GET['id']);

// Get an array containing the resulting record
$row = $connector->fetchArray($result);

?>

Your selected article: <?php echo $row['title,tagline'];?>
<br><br>
<?php echo $row['thearticle'];?>

Here is the SystemComponent.php:

<?php
class SystemComponent {

var $settings;

function getSettings() {

// System variables
$settings['siteDir'] = '../intranet%20test/';

// Database variables
$settings['dbhost'] = 'localhost';
$settings['dbusername'] = 'root';
$settings['dbpassword'] = '';
$settings['dbname'] = 'intratest';

return $settings;

}

}
?>

Hope someone can help me with this problem.