Код:
<?php  

require_once("include/bittorrent.php");
dbconn();


  $query = mysql_query("SELECT DISTINCT tags FROM torrents WHERE modded = 'yes' AND tags IS NOT NULL") or sqlerr(__FILE__, __LINE__);


$tags = array();

        while ($row = mysql_fetch_assoc($query)) {

$addtags = $row['tags'];
$addtags = explode(",", $addtags);

	foreach ($addtags as $tag) 
    	array_push($tags, trim($tag)); /// add tags to the array
            
        }


$tags = array_filter(array_unique($tags)); ///remove dublicates and empty values


stdhead("Tags");


foreach ($tags as $name)
	echo "<a href=\"$DEFAULTBASEURL/browse.php?tag=" . $name . "\" style='font: 9pt Arial,Helvetica,Sans-serif;'>" . htmlspecialchars($name) . "</a>, ";


stdfoot();
?>

http://s8.postimg.org/aamv9pehh/Screen_Shot_2013_06_12_at_2_53_36_PM.png