vypis z DB s ciarkou

<table>    <?
   include('db_connect.php');
   
   $buf=mysql_query("SELECT * FROM ludia ORDER by nick_name ASC")
   or die("!!! Chyba: ".mysql_error());
   
   while($buf2=mysql_fetch_array($buf))
   {
       echo   "<tr><td>".$buf2["nick_name"]."&nbsp;</td></tr>";
   }
   
      $pocetonline = mysql_num_rows($buf);
         if ($pocetonline=="0") echo "
&nbsp;-";
   
    ?></table>

SELECT GROUP_CONCAT(nick_name SEPARATOR ',') FROM `ludia`