сделал так, но не добавляется информация..ошибок тоже не выводит:
$tem="select distinct Id_tema,Tema from tema where Tema='" . $_GET["name"]."'";//exit ($tem);
$re_tem=mysql_query($tem);
$row_dat=mysql_fetch_assoc($re_tem);
$id_tema=$row_dat['Id_tema'];
$sql_dat="select Data from ocenki where Id_tema='$id_tema' order by Data";
$re_dat=mysql_query($sql_dat);
$row_dat_tem=mysql_fetch_assoc($re_dat);
$data=$row_dat_tem['Data'];
$query10="select Id_predm from predm where name_predm='".$_REQUEST['name_predm1']."'";
$result10=mysql_query($query10);
$row10=mysql_fetch_assoc($result10);
$id_predm=$row10["Id_predm"];
echo '<form method="post" action="">';
echo '<table border="1">';
while($row_resqwe1=mysql_fetch_array($resqwe1,MYSQL_ASSOC)){
$uc=$row_resqwe1["Fio"];
$id_uchen=$row_resqwe1["Id_uchen"];
echo '<tr>';
echo'<td >' . $uc . '</td>';
echo '<td>';
echo '<select name="uid["'.$id_uchen.'"]">
<option value=""></option>
<option value="н">н</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
</select>';echo '</td>';
echo '</tr>';
}
echo '</table>';
echo '<input type=submit name="vistav" value="Выставить">';
echo '</form>';
if (isset($_REQUEST['vistav'])){
if (isset($_POST['uid']) && count($_POST['uid']) > 0) {
foreach($_POST['uid'] as $key => $value) {
$dob_oc="Insert into ocenki (Id_uchen,Id_predm,Id_tema,Ocenka,Data) values ('$id_uchen','$id_predm','$id_tema','$value','$data')";
$res_dob=mysql_query($dob_oc);
if (!$res_dob)
{echo "Ваши данные не добавлены". mysql_error();}
}
}