ecshop商城让所有页面都显示新文章提高SEO优化的实现方法

$smarty->assign('new_articles', index_get_new_articles());   // 很新文章

$smarty->assign('lang', $_LANG);

/**
* 获得很新的文章列表。
*
* @ebingou.cn
* @代码号
*/
function index_get_new_articles()
{
$sql = 'SELECT a.article_id, a.title, ac.cat_name, a.add_time, a.file_url, a.open_type, ac.cat_id, ac.cat_name ' .
' FROM ' . $GLOBALS['ecs']->table('article') . ' AS a, ' .
$GLOBALS['ecs']->table('article_cat') . ' AS ac' .
' WHERE a.is_open = 1 AND a.cat_id=13 AND a.cat_id = ac.cat_id AND ac.cat_type = 1' .
' ORDER BY a.article_type DESC, a.add_time DESC LIMIT ' . $GLOBALS['_CFG']['article_number'];
$res = $GLOBALS['db']->getAll($sql);
$arr = array();
foreach ($res AS $idx => $row)
{
$arr[$idx]['id'] = $row['article_id'];
$arr[$idx]['title'] = $row['title'];
$arr[$idx]['short_title'] = $GLOBALS['_CFG']['article_title_length'] > 0 ?
sub_str($row['title'], $GLOBALS['_CFG']['article_title_length']) : $row['title'];
$arr[$idx]['cat_name'] = $row['cat_name'];
$arr[$idx]['add_time'] = local_date($GLOBALS['_CFG']['date_format'], $row['add_time']);
$arr[$idx]['url'] = $row['open_type'] != 1 ?
build_uri('article', array('aid' => $row['article_id']), $row['title']) : trim($row['file_url']);
$arr[$idx]['cat_url'] = build_uri('article_cat', array('acid' => $row['cat_id']), $row['cat_name']);
}
return $arr;
}

<ul>
<!--{foreach from=$new_articles item=article}-->
<li>
<a href="{$article.url}" title="{$article.title|escape:html}">{$article.short_title|truncate:15:"...":true}</a>
</li>
<!--{/foreach}-->
</ul>