Вывод похожих записей

public static function tagline($article_id, $links = true, $selected = '')
    {
        $req = mysql_query("SELECT `tags` FROM `cms_articles_tags` WHERE `article_id`='$article_id' ORDER BY `tags` DESC");
        $html = '';
        $tags = mysql_num_rows($req);
	    if ($tags){
	       $t = 1;
	       while ($tag = mysql_fetch_assoc($req)){
	           if ($links){
	               if ($selected==$tag['tags']){
	                   $html .= '<a href="/search/tag/'.urlencode($tag['tags']).'" style="font-weight:bold;text-decoration:underline">'.$tag['tags'].'</a>rtttt';			
               	    } else {
	                   $html .= '<a href="/search/tag/'.urlencode($tag['tags']).'">'.$tag['tags'].'</a>';
                    }
           	   } else {
	               $html .= $tag['tags'];	
	           }
	           if ($t < $tags) { $html .= ', '; $t++; }
       	}
    } else {
	$html = '';
	}
	return $html;
    }

$id = $article_id['id'];
$tag_arr = explode(', ', articles::tagline('id'));
// Получаем id таких же тегов
foreach ($tag_arr as $tag){
$req =mysql_query("SELECT id FROM cms_articles_tags WHERE tags = '$tag' AND article_id<>'$id' LIMIT 5");
if (mysql_num_rows($req)) {
while ($tagitem = mysql_fetch_assoc($req)) {
$id_target[] = $tagitem['id'];
}
}
}

$morearticles = '';
foreach ($id_target as $n) {
$rs = mysql_query("SELECT * FROM cms_articles_post WHERE id = '$n'");
 if(mysql_num_rows($rs)){
while ($post = mysql_fetch_assoc($rs)){
$morearticles .= '<a href="/">'.$post['post_title'].'</a>';}
}
}
echo $morearticles;