Invoice

Key	Type	Description
number	string	Comma separated product names
products	array	Products as array with name: string price: float quantity: integer
amount	float	The total amount paid
discount	array	(optional) Information about the discount code: string amount: float percentage: integer (optional)
currency	string	ISO 4217 of currency
test	boolean	Payment has been processed in sandbox
referenceId	string	Reference code passed through API or GET parameter to the payment page
paymentRequestId	id	ID of the Invoice or VR pay secure Gateway created through API
paymentLink	array	Invoice / Gateway data as array hash referenceId email
custom_fields	array	All fields passed within the form in the shopper's language as array name value

Example

<?php
array(
  'number' => 'Product 1, Product 2',
  'products' => array(
    0 => array(
      'name' => 'Product 1',
      'price' => 2.9,
      'quantity' => 1,
    ),
    1 => array(
      'name' => 'Product 2',
      'price' => 1.9,
      'quantity' => 1,
    ),
  ),
  'amount' => 4.8,
  'discount' => array(
    'code' => NULL,
    'amount' => 0,
    'percentage' => NULL,
  ),
  'currency' => 'EUR',
  'test' => 0,
  'referenceId' => '',
  'paymentRequestId' => NULL,
  'paymentLink' => NULL,
  'custom_fields' => array(
    1 => array(
      'name' => 'Field 1 name',
      'value' => 'Field 1 value',
    ),
    2 => array(
      'name' => 'Field 2 name',
      'value' => 'Field 2 value',
    ),
    3 => array(
      'name' => 'Field 3 name',
      'value' => 'Field 3 value',
    ),
  ),
);