Need to pass data from a Shopping cart to another server using cURL

[ic3cold]

I created a class to pass data from a shopping cart into a form emulation using cURL my problem is the way to retrieve the data to sent.
So far I created a class:

<?php

  class ic {
    var $code, $title, $description, $enabled;


function https_send($params)
{

$test_mode=0;

    $ch = curl_init(); 
    curl_setopt($ch, CURLOPT_URL,"https://www.internationalcheckout.com/cart.php"); 

// Seed cURL connection options
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($ch, CURLOPT_FAILONERROR, 1); 
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); 
        curl_setopt($ch, CURLOPT_TIMEOUT, 30); 
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); 
        curl_setopt($ch, CURLOPT_POST, 1); 
// Create iData packet from individual fields...
$idata=implode(",",$params["iData"]);

// Compose and send POST message
    curl_setopt($ch, CURLOPT_POSTFIELDS, 'Company=' . $params["iccompany"] . '&iData=' . $idata); 
        $result=curl_exec ($ch); 
        curl_close ($ch); 

    return $result;
}

Then to get the product info from the shopping cart ...

//Prepare the data from the cart to be transmited using curl

function process_button() {
  global $_SERVER, $product;

$products = $cart->get_products(); 
for ($i=0, $n=sizeof($products); $i<$n; $i++) {
  if (($i/2) == floor($i/2)) {

$productsImage = (IMAGE_SHOPPING_CART_STATUS == 1 ? zen_image(DIR_WS_IMAGES . $products[$i]['image'], $products[$i]['name'], IMAGE_SHOPPING_CART_WIDTH, IMAGE_SHOPPING_CART_HEIGHT) : '');
$quantityField = zen_draw_input_field('cart_quantity[]', $products[$i]['quantity'], 'size="4"');
 $productsPrice = $currencies->display_price($products[$i]['final_price'], zen_get_tax_rate($products[$i]['tax_class_id']), $products[$i]['quantity']) . ($products[$i]['onetime_charges'] != 0 ? '<br />' . $currencies->display_price($products[$i]['onetime_charges'], zen_get_tax_rate($products[$i]['tax_class_id']), 1) : '');
  $productsPriceEach = $currencies->display_price($products[$i]['final_price'], zen_get_tax_rate($products[$i]['tax_class_id']), 1) . ($products[$i]['onetime_charges'] != 0 ? '<br />' . $currencies->display_price($products[$i]['onetime_charges'], zen_get_tax_rate($products[$i]['tax_class_id']), 1) : '');

// Create a smaller Array to hold just the data above

  $productArray[$i] = array( 'productsImage'=>$productsImage,
                                            'productsName'=>$productsName,
                                            'quantityField'=>$quantityField,
                                             'productsPrice'=>$productsPrice,
                                  'productsPriceEach'=>$productsPriceEach,
                            'rowClass'=>$rowClass,

                        'id'=>$products[$i]['id']);
} // end FOR loop  


foreach ($productArray as $product) {

  $process_button_string = zen_draw_hidden_field('ItemQuantity',$product['quantityField'] . 
						   zen_draw_hidden_field('ItemImage', $product['productsImage']) . 
			               zen_draw_hidden_field('ItemDescription', $product['productsName']) . 
						   zen_draw_hidden_field('ItemPrice', $product['productsPrice']);

  $process_button_string .= zen_draw_hidden_field(zen_session_name(), zen_session_id());
  return $process_button_string;
}

}
// !Functions to execute before processing the order
    function before_process() {
      global $_POST;

  $params['iccompany']= MODULE_PAYMENT_IC_COMPANY;
  $params['ItemQuantity'] = $_POST['ItemQuantity'];
  $params['ItemImage'] = $_POST['ItemImage'];
  $params['ItemDescription'] = $_POST['ItemDescription'];
  $params['ItemPrice'] = $_POST['ItemPrice'];

  $params['iccompany'] = urlencode($params['iccompany']);

  $params['iData'][0] = urlencode($params['ItemQuantity']);
  $params['iData'][1] = urlencode($params['ItemImage']);  
  $params['iData'][2] = urlencode($params['ItemDescription']);
  $params['iData'][3] = urlencode($params['ItemPrice']); 

So now what's left is how to loop through the products to concatenate the final string that will be added to CURLOPT_POSTFIELDS.

My problem is I am not sure if $productArray will be empty, because this info is retrieved from the cart.