function getCheckout($cart, $paypal, $is_sandbox, $fields = NULL)
{
$item_arr = array();
$item_total = 0;
$i = 1;
$weight_total = 0;
foreach ($cart['items'] as $item) {
if ($item['quantity']) {
$item_arr["item_name_{$i}"] = $this->getItemTitle($item, FALSE, array(), NULL);
$item_arr["amount_{$i}"] = $item['price'];
$item_arr["quantity_{$i}"] = $item['quantity'];
$weight_total += $item['weight'];
$i++;
}
}
$item_arr['weight_total'] = $weight_total;
$total = $item_total;
$shipping_fee = 0;
if ($cart['shipping']) {
$shipping_fee = $cart['shipping'];
}
$item_arr['shipping_1'] = $shipping_fee;
$sandbox = '';
if ($is_sandbox) {
$sandbox = 'sandbox.';
}
$inputs = '';
if (isset($fields)) {
$shipping_fields = '';
$proc = new Form_Processor();
foreach ($fields as $field) {
$shipping_fields .= $proc->htmlRenderField($field);
}
$shipping_form = $this->xmlDiv($this->xmlTag('h4', 'Enter shipping information:') . $this->xmlTag('ul', $shipping_fields), array('class' => 'shopping-cart-shipping-form'));
$inputs .= $shipping_form;
}
$inputs .= $this->xmlInputsHidden(array('cmd' => '_cart', 'upload' => '1', 'custom' => $cart['code']) + $paypal + $item_arr);
$inputs .= $this->xmlEmptyTag('input', array('type' => 'image', 'src' => 'https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif'));
$checkout_form = $this->xmlTag('form', $inputs, array('action' => "https://www.{$sandbox}paypal.com/cgi-bin/webscr", 'method' => 'post', 'novalidate' => 'novalidate'));
$checkout = $this->xmlDiv($this->xmlTag('h3', 'Checkout') . $checkout_form, array('class' => 'shopping-cart-checkout'));
return $checkout;
}
