Hi,

With limited PHP knowledge, I am trying to create a new module which allows to create a custom order from admin. I am stuck now for some time, trying to get this pull_down_menu customers box to populate.

What have I forgotten?

Here is my program code:
Code:
<?php

require ('includes/application_top.php');

require(DIR_WS_CLASSES . 'currencies.php');
  $currencies = new currencies();

$action = (isset($_GET['action']) ? $_GET['action'] : '');
 $customer_id = zen_db_prepare_input($_GET['cID']);
// $product_id = zen_db_prepare_input($_GET['pID']);
// $manufacturers_id = zen_db_prepare_input($_GET['mID']);
// $quote_id = zen_db_prepare_input($_GET['qID']);
// $order_id = zen_db_prepare_input($_GET['oID']);
 
 $error = false;
 $processed = false;
 
 if (zen_not_null($action)) {
    switch ($action) {
      case 'get_customer':
      	$customers_firstname = zen_db_prepare_input($_POST['customers_firstname']);
        $customers_lastname = zen_db_prepare_input($_POST['customers_lastname']);
        $customers_email_address = zen_db_prepare_input($_POST['customers_email_address']);
        $customers_telephone = zen_db_prepare_input($_POST['customers_telephone']);
        $default_address_id = zen_db_prepare_input($_POST['default_address_id']);
        $entry_street_address = zen_db_prepare_input($_POST['entry_street_address']);
        $entry_suburb = zen_db_prepare_input($_POST['entry_suburb']);
        $entry_postcode = zen_db_prepare_input($_POST['entry_postcode']);
        $entry_city = zen_db_prepare_input($_POST['entry_city']);
        $entry_country_id = zen_db_prepare_input($_POST['entry_country_id']);
               
      	$customer_info = $db->Execute("select c.customers_id, c.customers_gender, c.customers_firstname,
                                          c.customers_lastname, c.customers_dob, c.customers_email_address,
                                          a.entry_company, a.entry_street_address, a.entry_suburb,
                                          a.entry_postcode, a.entry_city, a.entry_state, a.entry_zone_id,
                                          a.entry_country_id, c.customers_telephone, c.customers_fax,
                                          c.customers_default_address_id, c.customers_email_format
                                  from " . TABLE_CUSTOMERS . " c left join " . TABLE_ADDRESS_BOOK . " a
                                  on c.customers_default_address_id = a.address_book_id 
                                  order by c.customers_lastname
                                  where a.customers_id = c.customers_id
                                  and c.customers_id = '" . (int)$customer_id . "'");

        $cInfo = new objectInfo($customer_info->fields);
    }
  }
  
  
// error detection
if ($action == 'get_customet') {
  if (!isset($_POST['customers_lastname']) ) {
    $messageStack->add(ERROR_NO_CUSTOMER_SELECTED, 'error');
    }
}
  
  ?>
<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN">
<html <?php echo HTML_PARAMS; ?>>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=<?php echo CHARSET; ?>">
<title><?php echo TITLE; ?></title>
<link rel="stylesheet" type="text/css" href="includes/stylesheet.css">
<link rel="stylesheet" type="text/css" href="includes/cssjsmenuhover.css" media="all" id="hoverJS">
<script language="javascript" src="includes/menu.js"></script>
<script language="javascript" src="includes/general.js"></script>
<script language="javascript" type="text/javascript">
  <!--
var form = "";
var submitted = false;
var error = false;
var error_message = "";

  function check_form(form_name) {
  if (submitted == true) {
    alert("<?php echo JS_ERROR_SUBMITTED; ?>");
    return false;
  }
  error = false;
  form = form_name;
  error_message = "<?php echo JS_ERROR; ?>";

  check_select("customers_lastname", "", "<?php echo ERROR_NO_CUSTOMER_SELECTED; ?>");

  if (error == true) {
    alert(error_message);
    return false;
  } else {
    submitted = true;
    return true;
  }
}
  // -->
</script>
</head>
<body onLoad="init()">
<!-- header //-->
<?php require (DIR_WS_INCLUDES . 'header.php'); ?>
<!-- header_eof //-->

<!-- body //-->
<table border="0" width="100%" cellspacing="2" cellpadding="2">
  <tr>
<!-- body_text //-->
	<td width="100%" valign="top">
	  <table border="0" width="100%" cellspacing="0" cellpadding="2">
	    <tr>
          <td>
            <table border="0" width="100%" cellspacing="0" cellpadding="0">
              <tr>
                <td class="pageHeading"><?php echo HEADING_TITLE; ?>
                </td>
                <td class="pageHeading" align="right"><?php echo zen_draw_separator('pixel_trans.gif', HEADING_IMAGE_WIDTH, HEADING_IMAGE_HEIGHT); ?>
                </td>
              </tr>
            </table>
          </td>
        </tr>
	    <tr>
	      <td class="formAreaTitle"><?php echo CATEGORY_CUSTOMER; ?>
	      </td>
        </tr>
        <tr>
          <td class="formArea"><table border="0" cellspacing="2" cellpadding="2">
          </td>
          <td class="main" valign="top"><?php echo TEXT_SELECT_CUSTOMER . zen_draw_form('customer_select', FILENAME_CUSTOM_ORDER, '', 'get') . '&nbsp;&nbsp;' . zen_draw_pull_down_menu('customers', 'onChange="this.form.submit();"') . zen_hide_session_id() . zen_draw_hidden_field('action', 'get_customer');
  	  $customer_info = $db->Execute(zen_db_input($_POST['customers_lastname']), TABLE_CUSTOMERS) . '</form>'; ?>
          </td>
          <td class="main"> TODO: Display customer details here.
          </td>
        </tr>
      
      </table>      
    </td>
<!-- body_text_eof //-->
  </tr>
</table>
<!-- body_eof //-->

<!-- footer //-->
<?php require (DIR_WS_INCLUDES . 'footer.php'); ?>
<!-- footer_eof //-->
<br />
</body>
</html>
<?php require (DIR_WS_INCLUDES . 'application_bottom.php'); ?>
Any help is greatly appreciated, as I cannot finish any other part, as it will depend on a similar pull_down_menu.

Goshawk