Multiple products in newest version of PayPal API - php

Question

What is the correct way of passing in multiple products into a php paypal payment?
Currect working testcode for single product:
$api = new ApiContext(
new OAuthTokenCredential(
'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
)
);
$api->setConfig([
'mode' => 'sandbox',
'log.LogEnabled' => false,
'log.FileName' => '',
'log.LogLevel' => 'FINE',
'validation.level' => 'log'
]);
$payer = new Payer();
$details = new Details();
$amount = new Amount();
$transaction = new Transaction();
$payment = new Payment();
$redirecturls = new RedirectUrls();
$payer->setPaymentMethod('paypal');
$details->setShipping('2.00')
->setTax('0.00')
->setSubtotal('20.00');
$amount->setCurrency('EUR')
->setTotal('22.00')
->setDetails($details);
$transaction->setAmount($amount)
->setDescription('Test');
$payment->setIntent('sale')
->setPayer($payer)
->setTransactions([$transaction]);
$redirecturls->setReturnUrl('RETURN URL')
->setCancelUrl('CANCEL URL');
$payment->setRedirectUrls($redirecturls);
try {
$payment->create($api);
} catch (PPConnectionException $e) {
header('Location: ERROR URL');
}
header('Location: '.$payment->getApprovalLink());
Keep in mind, this is not how I will implement it, this is just proof of concept!
I made a little CodeIgniter library with which I can easily call a payment!
If anyone is interested, don't hesitate to message me!
$this->load->library('Paypal');
$this->load->model('Config_model');
$ClientID = $this->Config_model->get('paypal.ClientID');
$Secret = $this->Config_model->get('paypal.Secret');
$defaultCurrency = $this->Config_model->get('transactions.currency');
$this->paypal->setSandbox(true);
$this->paypal->setMerchant($ClientID, $Secret);
$this->paypal->setDefaultCurrency($defaultCurrency);
$this->paypal->addItem('test', 5.3, 2);
$this->paypal->addItem('test2', 3.3, 5);
$this->paypal->setShipping(2);
$this->paypal->setTax(3);
$this->paypal->setDescription("Betalingetje");
$this->paypal->setCancelUrl('CANCEL URL HERE');
$this->paypal->setReturnUrl('RETURN URL HERE');
$this->paypal->execute();
PS: It works in conjunction with another tiny 'library' which is autoloaded. This library only includes the composer autoload.php like this:
class MyComposer
{
function __construct()
{
include("application/composer/vendor/autoload.php");
}
}

Answer 1

You can find the source code here: http://paypal.github.io/PayPal-PHP-SDK/sample/doc/payments/CreatePaymentUsingPayPal.html
There are so many more samples that comes packaged with the SDK itself. You can follow the instructions provided here at https://github.com/paypal/PayPal-PHP-SDK/wiki/Samples to execute samples in your local machine.
Let me know if I could be of any more help.
Here is the sample code snippet:
<?php
// # Create Payment using PayPal as payment method
// This sample code demonstrates how you can process a
// PayPal Account based Payment.
// API used: /v1/payments/payment
require __DIR__ . '/../bootstrap.php';
use PayPal\Api\Amount;
use PayPal\Api\Details;
use PayPal\Api\Item;
use PayPal\Api\ItemList;
use PayPal\Api\Payer;
use PayPal\Api\Payment;
use PayPal\Api\RedirectUrls;
use PayPal\Api\Transaction;
// ### Payer
// A resource representing a Payer that funds a payment
// For paypal account payments, set payment method
// to 'paypal'.
$payer = new Payer();
$payer->setPaymentMethod("paypal");
// ### Itemized information
// (Optional) Lets you specify item wise
// information
$item1 = new Item();
$item1->setName('Ground Coffee 40 oz')
->setCurrency('USD')
->setQuantity(1)
->setPrice(7.5);
$item2 = new Item();
$item2->setName('Granola bars')
->setCurrency('USD')
->setQuantity(5)
->setPrice(2);
$itemList = new ItemList();
$itemList->setItems(array($item1, $item2));
// ### Additional payment details
// Use this optional field to set additional
// payment information such as tax, shipping
// charges etc.
$details = new Details();
$details->setShipping(1.2)
->setTax(1.3)
->setSubtotal(17.50);
// ### Amount
// Lets you specify a payment amount.
// You can also specify additional details
// such as shipping, tax.
$amount = new Amount();
$amount->setCurrency("USD")
->setTotal(20)
->setDetails($details);
// ### Transaction
// A transaction defines the contract of a
// payment - what is the payment for and who
// is fulfilling it.
$transaction = new Transaction();
$transaction->setAmount($amount)
->setItemList($itemList)
->setDescription("Payment description")
->setInvoiceNumber(uniqid());
// ### Redirect urls
// Set the urls that the buyer must be redirected to after
// payment approval/ cancellation.
$baseUrl = getBaseUrl();
$redirectUrls = new RedirectUrls();
$redirectUrls->setReturnUrl("$baseUrl/ExecutePayment.php?success=true")
->setCancelUrl("$baseUrl/ExecutePayment.php?success=false");
// ### Payment
// A Payment Resource; create one using
// the above types and intent set to 'sale'
$payment = new Payment();
$payment->setIntent("sale")
->setPayer($payer)
->setRedirectUrls($redirectUrls)
->setTransactions(array($transaction));
// For Sample Purposes Only.
$request = clone $payment;
// ### Create Payment
// Create a payment by calling the 'create' method
// passing it a valid apiContext.
// (See bootstrap.php for more on `ApiContext`)
// The return object contains the state and the
// url to which the buyer must be redirected to
// for payment approval
try {
$payment->create($apiContext);
} catch (Exception $ex) {
// NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
ResultPrinter::printError("Created Payment Using PayPal. Please visit the URL to Approve.", "Payment", null, $request, $ex);
exit(1);
}
// ### Get redirect url
// The API response provides the url that you must redirect
// the buyer to. Retrieve the url from the $payment->getApprovalLink()
// method
$approvalUrl = $payment->getApprovalLink();
// NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
ResultPrinter::printResult("Created Payment Using PayPal. Please visit the URL to Approve.", "Payment", "<a href='$approvalUrl' >$approvalUrl</a>", $request, $payment);
return $payment;