我有5个字段的形式。当点击提交按钮时，它将从数据库MSSQL的字段中获取Amount。现在，当我填写表格并提交时，它会给出错误。我已经使用MSSQL过程查询来执行它。请帮帮我，我现在遇到了麻烦。
<div id="middle_pane">
<div>
<div id="inner_pane">
<div id="center_pane">
<div id="center_inner_pane">
<div class="txt_content">
<table width="385" height="200" style=" border:2px solid silver"
cellpadding="6px" cellspacing="0px" align="center" border="0">
<form method="POST" action="<?php bloginfo('url');?>/fedex-tariff">
<tr>
<td colspan="2" style="background:#0066FF; color:#FFFFFF;
fontsize:50px">Fedex Rate Card</td></tr>
<tr>
<td>Origin</td>
<td>
<select name="origin" id="origin" onChange="">
<option value="pakistan">Pakistan</option>
</select>
</td>
</tr>
<tr>
<td>Select Origin city </td>
<td>
<select name="city_id" id="city_id">
<option value="">--SELECT CITY--</option>
<?php
$city = "select * from branches";
$city_query = mssql_query($city);
while ($row_city = mssql_fetch_array($city_query)){
?>
<option value="<?php echo $row_city['name'];?>"> <?php echo
$row_city['name']; ?></option>
<?php } ?>
</select>
</td>
</tr>
<tr>
<td>Select Destination </td>
<td>
<select name="country_id" id="country_id">
<option value="">--SELECT Destination--</option>
<?php
$service= "select * from country";
$service_query= mssql_query($service);
while ($row_service = mssql_fetch_array($service_query)){
?>
<option value="<?php echo $row_service['Name'];?>"> <?php
echo $row_service['Name']; ?></option>
<?php } ?>
</select>
</td>
</tr>
<tr>
<td> Selection of Weight </td>
<td>
<div id="wgt">
<input type="text" id="weight" name="weight" value=""
placeholder="weight...." required="">
</div>
</td>
</tr>
<tr>
<td>Select Your Service</td>
<td>
<select name="service_id" id="service_id">
<option value="">--SELECT--</option>
<?php
$service_type = "SELECT distinct ServiceTypeId from
dbo.IntlZoneCountry where ServiceTypeId IN ('FedEx Cash Tariff
Docs','FedEx Box','FedEx Student Package')";
$res_type = mssql_query($service_type);
$cnt_type = mssql_num_rows($res_type);
while($row_type = mssql_fetch_array($res_type)){
?>
<option value="<?php echo $row_type['ServiceTypeId'];?>"><?php
echo $row_type['ServiceTypeId'];?></option>
<?php } ?>
</select>
</td>
</tr>
<tr>
<td> <input type="submit" value="Calculate" name="submit"
class="btn"></td>
</tr>
</form>
<table width="385" style=" border:2px solid silver"
cellpadding="6px" cellspacing="0px" align="center" border="0">
<tr>
<td>
<?php
if(isset($_POST['submit']))
{
$city_id = $_POST['city_id'];
$country_id = $_POST['country_id'];
$service_id = $_POST['service_id'];
$weight_id = $_POST['weight'];
if(empty($city_id) || empty($country_id) || empty($service_id) ||
empty($weight_id)){
?><center><?php echo "Please filled all the fields first.";?>
</center>
<?php
}
else{
$s = "[SP_UpdateCNPrice_Int_Tariff]
'$weight_id','$city_id','$country_id','$service_id'";
$result = mssql_query($s);
while($row = mssql_fetch_assoc($result)){
?>
</td>
</tr>
<tr style="background:#00CFFF; color:blue;">
<td>
<center>
<font size="3">
<?php
$val = $row['amount'];
$gst = $row['gst'];
echo "<strong>"."Rate : "."$".""." ".$val.$gst;
?>
</font>
</center>
</td>
</tr>
<tr style="background:#00CFFF; color:blue;">
<td><center> All Rates are Exclusive of 16% GST + 23% fuel
Charges (FSC).</center> </td>
</tr>
<?php
}
}
}
?>
</table>
</div>
</div>
</div>
</div>
</div>
