VM + хочу в подарок (VK Merchant API) - [VM1] Модификации и хаки

<?php

$merchant_id = 'ххх';
$secret = 'тут ваш ключ сикретный';

preg_match("/[^0-9]*([0-9]{1,8})[\s\S]*/",$product_price,$pprice);
$item = array(
  'id' => $product_id,
  'name' => $product_name,
  'description' => $product_s_desc,
  'price' => $pprice[1],
  'photo_url' => $product_thumb_image
);

$script .= 'window.prepareOrder = function() { var result = {';
$script .= 'testmode: 1,';

$params = array();

$params['merchant_id'] = 16217;
$script .= 'merchant_id: 16217,';

$params['item_id'] = $item['id'];
$script .= 'item_id: "'.$item['id'].'",';

$params['item_name'] = $item['name'];
$script .= 'item_name: "'.str_replace(array('\\', '"'), array('\\\\', '\\"'), $item['name']).'",';

$params['item_description'] = $item['description'];
$script .= 'item_description: "'.str_replace(array('\\', '"'), array('\\\\', '\\"'), $item['description']).'",';

$params['item_currency'] = 'RUB';
$script .= 'item_currency: "RUB",';

$params['item_price'] = $item['price'];
$script .= 'item_price: "'.$item['price'].'",';

$params['item_photo_url'] = $item['photo_url'];
$script .= 'item_photo_url: "'.$item['photo_url'].'",';

ksort($params);
$str = '';
foreach ($params as $k => $v) {
  $str .= $k.'='.$v;
}

$str=str_replace("&quot;",'',$str);
$str=str_replace("&amp;",'&',$str);
$script=str_replace("&amp;",'&',$script);
$script=str_replace("&quot;",'',$script);

$sig = md5($str.$secret);
$text .= 'sig: "'.$sig.'"}; return result; };';
$text .= 'document.write(VK.Merchant.wishbutton(prepareOrder));';


?>

<script type="text/javascript" src="http://vkontakte.ru/js/api/merchant.js?8" charset="UTF-8"></script>

<script type="text/javascript">
<?php echo $script.$text; ?>
</script>