รบกวนดู Code การทำข้อสอบออนไลน์ให้หน่อยค่ะ มีปัญหาในการเก็บคะแนนคะ ไม่สามารถเก็บคะแนนได้ค่ะ

<form name="form1" method="post" action="send_score.php?qs_id=<?=$objResult2['question_set_id'];?>"">
<?

$sql="Select * From question q, question_set qs WHERE q.question_set_id=qs.question_set_id and q.question_set_id='".$_GET['id']."' order by rand()";
$db_query=mysql_query($sql);
$i=0;
while($result=mysql_fetch_array($db_query))
{
$i++;
?><br/>
<table width="95%" border="0" align="center">
<tr>
  <td align="left"><b><?=$i;?><input name="id[<?=$i;?>]" type="hidden" value="<?=$result["question_id"];?>">
    <?=$result["question_name"];?></b></td>
</tr>
<tr>
<td width="14%"> <input name="choice<?=$i;?>" type="radio" value="1">
  <?=$result["choice1"];?>
</td>
</tr>
<tr>
  <td><input type="radio" name="choice<?=$i;?>" value="2">
    <?=$result["choice2"];?></td>
  </tr>
<tr>
  <td><input type="radio" name="choice<?=$i;?>" value="3">
    <?=$result["choice3"];?></td>
  </tr>
<tr>
<td><input type="radio" name="choice<?=$i;?>" value="4">
    <?=$result["choice4"];?></td>
  </tr>
<tr>
  <td><input type="radio" name="choice<?=$i;?>" value="5">
    <?=$result["choice5"];?>
    <input name="answer<?=$i;?>" type="hidden" value="<?=$result["answer"];?>"></td>
  </tr>
</table>
<? }?>
<br />
<br />
<?
$sql2="select * from question2 q2, question_set qs WHERE q2.question_set_id=qs.question_set_id and q2.question_set_id='".$_GET['id']."' order by rand()";
$db_query2=mysql_query($sql2);
$a=0;
while($result2=mysql_fetch_array($db_query2))
{
$a++;
?><br/>
<table width="95%" border="0" align="center">
<tr>
  <td align="left"><b><?=$a;?><input name="id[<?=$a;?>]" type="hidden" value="<?=$result2["question2_id"];?>">
    <?=$result2["question2_name"];?></b></td>
</tr>
<tr>
<td width="14%"> <input name="choice1<?=$a;?>" type="radio" value="1">
  <?=$result2["choice1"];?>
</td>
</tr>
<tr>
  <td><input type="radio" name="choice1<?=$a;?>" value="2">
    <?=$result2["choice2"];?>
    <input name="answer2<?=$a;?>" type="hidden" value="<?=$result2["answer2"];?>"></td>
  </tr>
</table>
<?
}
?>
<br />
<div align="center"><br>
<input type="hidden" name="line" value="<?=$i;?>">
<input type="hidden" name="line2" value="<?=$a;?>">
<input type="submit" name="Submit" value="ส่งข้อสอบ">
</div>
</form>

<?
$score=0;
$score2=0;
for($i=1;$i<=$_POST["line"];$i++)
{
	if($_POST["choice$i"] == $_POST["answer$i"])
	{
		$score=$score+1;
	}
}
for($a=1;$a<=$_POST["line"];$a++)
{
	if($_POST["choice$a"] == $_POST["answer2$a"])
	{
		$score2=$score2+1;
	}
}
//echo "<p align='center'>คุณทำข้อสอบได้ $score คะแนนจาก 20 ข้อ<br>";
echo "<script language='javascript'>alert('บันทึกข้อมูลเรียบร้อยแล้ว');</script>";
echo "<meta http-equiv='refresh' content='0;URL=example.php'>";
$strSQL = "INSERT INTO score_example (member_id, question_set_id, score, score2, time_end) VALUES ('".$_SESSION["id"]."', '".$_GET['qs_id']."', '$score', '$score2', now())";
$objQuery = mysql_query($strSQL);
?>