veja se esta certo
<? $sql = "SELECT * \n". "FROM ma_canais_adm c, ma_permissao_acesso p, ma_user_tipo_rel r \n". "WHERE c.aca_status = 'Ativo' \n". "AND r.usr_id='".$_SESSION["admin_id"]."'\n". "AND r.tp_usr_id=p.tp_usr_id\n". "AND c.aca_id=p.aca_id \n". "AND (c.aca_pai IS NULL OR c.aca_pai = 0) \n". "GROUP BY p.aca_id\n". "ORDER BY c.aca_ordem"; $res = mysql_query($sql) or die(mysql_error()); while($row = mysql_fetch_array($res)){ if($cp == $row[aca_id]){ ?>