TJersy, function who($id = 0) {

global $db;


$us = $db->query("SELECT * FROM `users` WHERE `id` = '$id' LIMIT 1"smile->fetch_accos();

if($us['sex'] == '1' && $us['online'] <= time()-600) $ico = '<img src="/system/css/ico/moff.png" width="14px" alt="off" />';
elseif($us['sex'] == '2' && $us['online'] <= time()-600) $ico = '<img src="/system/css/ico/woff.png" width="14px" alt="off" />';
elseif($us['sex'] == '1' && $us['online'] > time()-600) $ico = '<img src="/system/css/ico/mon.png" width="14px" alt="on" />';
elseif($us['sex'] == '2' && $us['online'] > time()-600) $ico = '<img src="/system/css/ico/won.png" width="14px" alt="on" />';

if($us['prava'] == '1'){ $color = ''; }
elseif($us['prava'] == '2'){ $color = '#56a856'; }
elseif($us['prava'] == '3'){ $color = '#b33642'; }
elseif($us['prava'] == '4'){ $color = '#ffbf00'; }

return (empty($us)?'БОТ':' '.$ico.' <a href="/user.php?id='.$us['id'].'"><font color="'.$color.'"> '.$us['login'].'</font></a>');
}

TJersy, global $db; перед работой с бд