simple html dom library insert into db

[kevin_007]

Hello, can any1 show me how to insert the following in db

<?php
include('dbconnect.php');
include('simple_html_dom.php');
$html = file_get_dom('test3.php');
foreach($html->find('h2') as $heading)
		{
			//echo $heading;
			foreach ($heading->find('a') as $link)
			{
                                       $item_title = md5($link);
				echo $link."<br/>";
				$sql = "INSERT INTO articles(article_id, article_link) VALUES($item_title, $link)";
				$result = mysql_query($sql);
			}
		}
?>

what i want to do is insert every link in the db, but this is not working. The output is ok but the insert doesnt work. Any help please??