Re: Need someones help on a "invalid date" error.

Here's the site map complete. I still can't get Googles invalid date
error to go away. I still have no clue how to alter this to work, I've
tried suggestions here but I think I'm getting the code wrong:

<?php

require_once("class2.php");

if(e_QUERY == "show")
{
require_once(HEADERF);

$sql -> db_Select("gsitemap", "*", "gsitemap_active IN
(".USERCLASS_LIST.") ");
$nfArray = $sql -> db_getList();
$text = "<ul>";

foreach($nfArray as $nfa)
{
$text .= "<li>".$tp->toHTML($nfa['gsitemap_cat'],"","defs").": <a
href='".$nfa['gsitemap_url']."'>".$tp->toHTML($nfa['gsitemap_name'],"","defs")."</a><br
/>\n";
}
$text .= "</ul>";

$ns -> tablerender(SITENAME." : Sitemap", $text);

require_once(FOOTERF);
exit;
}

$xml = "<?xml version='1.0' encoding='UTF-8'?>
<urlset xmlns='http://www.google.com/schemas/sitemap/0.84'
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.google.com/schemas/sitemap/0.84
http://www.google.com/schemas/sitemap/0.84/sitemap.xsd'>";

$sql -> db_Select("gsitemap", "*", "gsitemap_active IN
(".USERCLASS_LIST.") ");
$smArray = $sql -> db_getList();
foreach($smArray as $sm)
{
$xml .= "
<url>
<loc>".$tp->toRSS($sm['gsitemap_url'])."</loc>
<lastmod>".get_iso_8601_date($sm['gsitemap_lastmod'])."</lastmod>
<changefreq>".$sm['gsitemap_freq']."</changefreq>
<priority>".$sm['gsitemap_priority']."</priority>
</url>";
}

$xml .= "
</urlset>";

echo $xml;

/* ungu at terong dot com */
function get_iso_8601_date($int_date)
{
$date_mod = date('Y-m-d\TH:i:s', $int_date);
$pre_timezone = date('O', $int_date);
$time_zone = substr($pre_timezone, 0, 3).":".substr($pre_timezone,
3, 2);
$date_mod .= $time_zone;
return $date_mod;
}

?>