use php inside javascript promt box code?

[samoht]

Hello all,

 

I have a question about mixing js and php. I have a checkout section on my site that ends in a confirmation page that has a table of of the ordered items - at this point I want to ask the client if they have a coupon - so I accomplished that by an input button that on click goes to this js function:

 

function javascript_prompt_for_coupon() {

// PROMPTS REQUIRE TWO ARGUMENTS
var message = "Please Enter Your Code";
var promo_code = "6 digit code goes here";

var return_value = prompt(message,promo_code);

// TEST TO SEE IF NULL OR STRING RETURNED
if (return_value != null) {
	// 'OK' SCRIPT GOES HERE
	// This where I want to use php!
} else {
	// 'CANCEL' SCRIPT GOES HERE
}
}

If I can use php here then I would like to update my HTML table with the coupon added. This actually sounds like a job for AJAX

 

Any IDeas??

 

 

[sdi126]

What you are trying to do in your example is definetly an ajax solution. Why not just give an input box for the user to enter a coupon code on the confirmation page if they have one.

 

Once they confirm their order do your checking with php and then update the db.

[samoht]

That is what I'd like to do - but my boss wants everything on one page. He does not want to leave the current page expect to submit the order. So I guess I'll have to go with AJAX - and id I do - I could still use the prompt?

 

My question is then, once I pass the promo_code to the AJAX - search my db for the discount and return that value, how do I write the table structure to update properly?

 

here is a example of my current structure:

<?php
          $numItem  = count($cartContent);
          $subTotal = 0;
          for ($i = 0; $i < $numItem; $i++) {
            extract($cartContent[$i]);
            $subTotal += $PriceSell * $qty;
          ?>
          <tr class="labelcell">
            <td class="content">
              <?php echo "$qty x $Name"; ?>
            </td>
            <td align="right">
              <?php echo displayAmount($PriceSell); ?>
            </td>
            <td align="right">
              <?php echo displayAmount($qty * $PriceSell); ?>
            </td>
          </tr><?php
          }
          ?>
          <tr class="labelcell">
            <td colspan="2" align="right">
              Sub-total
            </td>
            <td align="right">
              <?php echo displayAmount($subTotal); ?>
            </td>
          </tr>
          <tr class="labelcell">
            <td colspan="2" align="right">
              Shipping
            </td>
            <td align="right">
              <?php echo displayAmount($shopConfig['shippingCost']); ?>
            </td>
          </tr>
          <tr class="labelcell">
            <td colspan="2" align="right">
              Total
            </td>
            <td align="right">
              <?php echo displayAmount($shopConfig['shippingCost'] + $subTotal); ?>
            </td>
          </tr>
        </table>