help me to make this query compatible with vb4.2.3

[SilverBoy]

Hi

I have this code

PHP Code:

$sql = "SELECT a.pagetext,a.contentid, a.previewimage, node.nodeid, node.parentnode, node.url, info.title, node.myfeaturetype
            FROM " . TABLE_PREFIX . "cms_article as a
            LEFT JOIN " . TABLE_PREFIX . "cms_node AS node ON a.contentid = node.contentid
            INNER JOIN " . TABLE_PREFIX . "cms_nodeinfo AS info ON info.nodeid = node.nodeid
            WHERE node.myfeaturetype = '4'
            ORDER BY node.publishdate DESC ";
    

    $result = $vbulletin->db->query_read_slave($sql);
    $sections = array();
    while ($section = $vbulletin->db->fetch_array($result)) {
        
  $pagetext = $section["pagetext"];
        $sections[] = array(
                'title' => $section['title'],
                'link' => $vbulletin->options['bburl']."/content.php?".$section['nodeid'].'-'.$section['url'],
                       'description' => get_summary($pagetext,$des_length),
                       'image' => $previewimage
               ); 


I want to make it compatible with vb4.2.3 syntax
for example in this line

PHP Code:

 $pagetext = $section["pagetext"]; 


If I changed $section["pagetext"] with any other variable form the query it works, but if I use it with variable with type mediumtext it returns NULL.
Any help?