单选按钮数组获取选定值和相关内容（相同ID隐藏元素）

Question

I'm having problems with extracting the data from a radio button form.

It looks like this:

<?php
## color
$stripe = 1;
$att_color=mysql_query("SELECT * FROM product_attributes WHERE products_id ='".$row['products_id']."' AND att_head='colors' AND att_show='1' ORDER BY att_order asc");
if(mysql_num_rows($att_color)!=0)
{
echo "
<table>
  <tr>
    <td width=\"90%\" align=\"left\" bgcolor=\"#EDEDED\">Color</td>
<td width=\"10%\" align=\"center\" bgcolor=\"#891531\">
<a href=\"#2\" title=\"Yta / Behandling\"><img src=\"images/info.png\"></a>
</td>
</tr>";

while($color_row=mysql_fetch_array($att_color)){
  if ($color_row['att_standard'] == 1) { $standard = "checked"; }
echo "
<tr class=".(($stripe++%2==1) ? 'odd' : 'even').">
  <td colspan=\"2\" width=\"100%\">
<input name=\"color_name[]\" value=\"".$color_row['att_name']."\" id=\"".$color_row['att_order']."\" type=\"hidden\" />
<input type=\"radio\" name=\"color_selected[]\" id=\"".$color_row['att_order']."\" value=\"".(round($color_row['att_val']*0.85))."\" ".$standard.">
<img src=\"images/colors/".$colorimg."\"> &nbsp;".$color_row['att_name']."</td>
 </tr>";
unset($standard); }
echo "</table>"; }
# END color
?>

Only ONE option is to be allowed. When someone hits submit I* need to get the value AND the corresponding name from that row. However I can't seem to figure the foreach syntax out.

if( isset($_POST['submit']) ) {   
    $c_selected = $_POST['color_selected'];
    $c_name = $_POST['color_name'];
    foreach($c_selected as $key => $n) {
    echo "<br><br>". $c_selected[$key] ." ".$c_name[$key];
 }

The current code gives me the correct value, but the wrong colorname. (always 1st option) How can I get this to work?

Answer 1

This is broke:

<input type=\"radio\" name=\"color_selected[]\" id=\"".$color_row['att_order']."\" value=\"".(round($color_row['att_val']*0.85))."\" ".$standard.">

 name=\"color_selected[]\" should not be an array. 

Instead just

 name=\"color_selected\" will provide the chosen color.

So the value of the radio button should be the color, not the cost of the item. You should make another hidden field with the value of the item, unless each color is a different price.

I think the problem is more complicated because you are trying to send an order array rather than a simple form or something. If this is the case, maybe you have to rethink the way you are doing this.

You seem to have a products id field, it should be unique for each color and can be used on the other side to get all the data values from your database.

<input name=\"att_order\"
       value=\"".$color_row['att_order']."\" 
       type=\"hidden\" />
<input type=\"radio\" 
       name=\"color_selected\" 
       value=\"".$color_row['products_id']."\" 
       ".$standard.">