한페이지로 상품의 금액을 입력하는 폼을 만들었는데 값이 wr_1에 들어가지 않습니다 채택완료

 </p>

<p><?

if ($_POST) {

$wr_id = $_POST['wr_id'];

$wr_1 = $_POST['wr_1'];

}</p>

<p>$q = "update g5_write_product set wr_1='$wr_1' where wr_id='$wr_id'";

sql_query($q);</p>

<p>$res = sql_query("select * from g5_write_product");

?></p>

<p>

<form id="form10" method="post">

<table style="border-top: 1px solid gainsboro">

<h3>저장테이블</h3></p>

<p><? while ($row = sql_fetch_array($res)) { ?>

    <tr>

        <td>

        <input type="hidden" name="wr_id" value="<?=$row['wr_id']?>">

        상품명 : <?=$row['wr_subject']?>


        금액 : <input type="text" name="wr_1" value="<?=$row['wr_1']?>" class="form-control" style="width: 200px;" >


        </td>

    </tr>

<? } ?>

</table></p>

<p><div style="text-align: left; padding: 0 8px 0 0">

    <input type="button" class="btn" value="저장" onClick="if(confirm('저장하시겠습니까?')){this.form.submit();}">

</div>

</form>