php menü yapımında hata yardım lazım

<?php 
$sorgula = mysql_query("SELECT * FROM menuler", $mysqlbaglan); 
        if(!$sorgula) 
            { 
                echo "HATA"; 
            } 
            while ($oku = mysql_fetch_array($sorgula)) 
            { 
                echo " 
                 <li><a href=\"$oku[sef]-$oku[id].html\">$oku[menuadi]</a> 
                ";     
        $sorgula2 = mysql_query("SELECT * FROM altmenuler WHERE katid=".$oku["id"], $mysqlbaglan); 
        if(!$sorgula2) 
            { 
                echo "HATA"; 
            } 
            while ($oku1 = mysql_fetch_array($sorgula2)) 
            { 
                echo " 
                 <ul> 
                ";     
                echo " 
                 <li><a href=\"$oku1[sef]-$oku1[id].html\">$oku1[isim]</a></li> 
                "; 
                 echo " 
                 </ul></li> 
                ";     
            } 
            } 
             

?>