在PHP中获取列表框的值

Question

I have the following code:

<td>Province</td>
<td>
<select name="prov">
<?php 
$sql1 = mysqli_query($connect, "SELECT * FROM Provincetbl order by Prov_Desc desc");
while ($row1 = $sql1->fetch_assoc()){
?>
<option value="prov1"><?php echo $row1['Prov_Desc']; ?> </option>
<?php 
}
?>
</select><br><br></td></tr>
<td>Distrect</td>
<td>
<select name="dist">
<?php 
$sql2 = mysqli_query($connect, "SELECT * FROM Distrecttbl order by Distrect_Desc desc");
while ($row2 = $sql2->fetch_assoc()){
?>
<option value="dist1"><?php echo $row2['Distrect_Desc']; ?> </option>
<?php 
}
?></select></td></tr>

There are two listboxes prov and dist. I have been trying to figure out how to read the value of either listbox (ie get it in a variable). I have found a post which states that the value of a listbox is read after the form is posted (in the variable $_Post). However, I am dealing with a listbox which is not sending anything to the server, so why is the value of the listbox read after the form is posted? Second, I do not have a form element in my page to begin with..? Other posts have stated that I can read the value of listbox in a variable $prov or $dist. However I cannot seem to echo the contents of these variables to the screen.

Thank you for your help.

Answer 1

I think all the options in the prov listbox will have the same value that you've wrote 'prov1' and the second listbox will have dist1 in all the options
What I recommande you to do is the following :
<option value="$row1['Prov_Desc']"><?php echo $row1['Prov_Desc']; ?> </option>
and for the second one use this :
<option value="$row2['Distrect_Desc']"><?php echo $row2['Distrect_Desc']; ?> </option>