详解Laravel接入paypal支付

PayPal

PayPal, 全球众多用户使用的国际贸易支付工具, 能够轻松完成境外收付款! 一个账户全球通用, 成为PayPal商家, 就能在任何地方接受更多付款方式。

下载paypal sdk

在 composer.json 中加入 “paypal/rest-api-sdk-php” : “1.7.4”,如图:

详解Laravel接入paypal支付

执行composer update

注册开发者账号,创建测试应用,测试账户

地址:

https://developer.paypal.com

创建沙盒测试账户

账号后台(可以看到自己的消费记录):

https://www.sandbox.paypal.com/signin?returnUri=https%3A%2F%2Fwww.sandbox.paypal.com%2Fmyaccount%2Fsummary&state=%2F

创建应用

详解Laravel接入paypal支付

查看应用配置

点击创建的应用,查看配置Client ID,Secret,后面请求接口需要到,sandbox为测试环境,live为线上环境

详解Laravel接入paypal支付

新建测试账号

可设置金额及密码

详解Laravel接入paypal支付

接入代码

下单逻辑

<?php
namespace AppHttpControllersApi;
use IlluminateHttpRequest;
use AppHttpControllersController;
use PayPalApiPayer;
use PayPalApiItem;
use PayPalApiItemList;
use PayPalApiDetails;
use PayPalApiAmount;
use PayPalApiTransaction;
use PayPalApiRedirectUrls;
use PayPalApiPayment;
use PayPalAuthOAuthTokenCredential;
use PayPalExceptionPayPalConnectionException;
use PayPalRestApiContext;
use PayPalApiPaymentExecution;
class paypalController extends Controller
{
const clientId = 'xxxxxxxxx';//应用Client ID
const clientSecret = 'xxxxxxxx';//Secret
const accept_url = 'http://xxx.laravel.com/Api/paypal/Callback'; //支付成功和取消交易的跳转地址
const Currency = 'USD';//货币单位
protected $PayPal;
public function __construct()
{
$this->PayPal = new ApiContext(
new OAuthTokenCredential(
self::clientId,
self::clientSecret
)
);
//如果是沙盒测试环境不设置,请注释掉
//        $this->PayPal->setConfig(
//            array(
//                'mode' => 'live',
//            )
//        );
}
/**
* @param
* $product 商品
* $price 价钱
* $shipping 运费
* $description 描述内容
*/
public function pay()
{
$product = '1123';
$price = 1;
$shipping = 0;
$description = '1123123';
$paypal = $this->PayPal;
$total = $price + $shipping;//总价
$payer = new Payer();
$payer->setPaymentMethod('paypal');
$item = new Item();
$item->setName($product)->setCurrency(self::Currency)->setQuantity(1)->setPrice($price);
$itemList = new ItemList();
$itemList->setItems([$item]);
$details = new Details();
$details->setShipping($shipping)->setSubtotal($price);
$amount = new Amount();
$amount->setCurrency(self::Currency)->setTotal($total)->setDetails($details);
$transaction = new Transaction();
$transaction->setAmount($amount)->setItemList($itemList)->setDescription($description)->setInvoiceNumber(uniqid());
$redirectUrls = new RedirectUrls();
$redirectUrls->setReturnUrl(self::accept_url . '?success=true')-&gt;setCancelUrl(self::accept_url . '/?success=false');
$payment = new Payment();
$payment->setIntent('sale')->setPayer($payer)->setRedirectUrls($redirectUrls)->setTransactions([$transaction]);
try {
$payment->create($paypal);
} catch (PayPalConnectionException $e) {
echo $e->getData();
die();
}
$approvalUrl = $payment->getApprovalLink();
header("Location: {$approvalUrl}");
}

走完下单逻辑会跳转到paypal的支付页面,第一次需要输入账号密码,如图:

详解Laravel接入paypal支付

进入支付页面,选择Paypal余额支付,支付完成或取消交易会自动跳转到你下单时传的跳转地址,并会传两个参数 paymentId(paypal订单号),PayerID(用户id),你可以根据你的业务逻辑写对应逻辑,一般同步回调确认用户是否付款,异步回调处理业务逻辑

同步回调

 /**
* 回调
*/
public function Callback()
{
$success = trim($_GET['success']);
if ($success == 'false' && !isset($_GET['paymentId']) && !isset($_GET['PayerID'])) {
echo '取消付款';die;
}
$paymentId = trim($_GET['paymentId']);
$PayerID = trim($_GET['PayerID']);
if (!isset($success, $paymentId, $PayerID)) {
echo '支付失败';die;
}
if ((bool)$_GET['success'] === 'false') {
echo  '支付失败,支付ID【' . $paymentId . '】,支付人ID【' . $PayerID . '】';die;
}
$payment = Payment::get($paymentId, $this->PayPal);
$execute = new PaymentExecution();
$execute->setPayerId($PayerID);
try {
$payment->execute($execute, $this->PayPal);
} catch (Exception $e) {
echo ',支付失败,支付ID【' . $paymentId . '】,支付人ID【' . $PayerID . '】';die;
}
echo '支付成功,支付ID【' . $paymentId . '】,支付人ID【' . $PayerID . '】';die;
}

异步回调

回调地址配置在后台,地址必须为https开头,设置一般过一段时间才会生效(我是下午申请,第二天上午才生效的,如图:

详解Laravel接入paypal支付

你可以勾选很多事件发送通知,不过最重要的还是支付完成(Payment sale completed)以及退款(Payment sale refunded)

支付完成

public function notify(){
//获取回调结果
$json_data = $this->get_JsonData();
if(!empty($json_data)){
Log::debug("paypal notify info:rn".json_encode($json_data));
}else{
Log::debug("paypal notify fail:参加为空");
}
//自己打印$json_data的值看有那些是你业务上用到的
//比如我用到
$data['invoice'] = $json_data['resource']['invoice_number'];
$data['txn_id'] = $json_data['resource']['id'];
$data['total'] = $json_data['resource']['amount']['total'];
$data['status'] = isset($json_data['status'])?$json_data['status']:'';
$data['state'] = $json_data['resource']['state'];
try {
//处理相关业务
} catch (Exception $e) {
//记录错误日志
Log::error("paypal notify fail:".$e->getMessage());
return "fail";
}
return "success";
}
public function get_JsonData(){
$json = file_get_contents('php://input');
if ($json) {
$json = str_replace("'", '', $json);
$json = json_decode($json,true);
}
return $json;
}

处理退款

public function returnMoney()
{
try {
$txn_id = "xxxxxxx";  //异步加调中拿到的id
$amt = new Amount();
$amt->setCurrency('USD')
->setTotal('99');  // 退款的费用
$refund = new Refund();
$refund->setAmount($amt);
$sale = new Sale();
$sale->setId($txn_id);
$refundedSale = $sale->refund($refund, $this->PayPal);
} catch (Exception $e) {
// PayPal无效退款
return json_decode(json_encode(['message' => $e->getMessage(), 'code' =&gt; $e->getCode(), 'state' => $e->getMessage()]));  // to object
}
// 退款完成
return $refundedSale;
}

查看相关流水

详解Laravel接入paypal支付

总结

paypal对于扩展海外支付的业务还是很有帮助的,它支持多种货币,可绑定各种信用卡,银行卡,缺点是接入时不会有paypal技术人员和你对接,反正我是在接入完成之后才联系到paypal对接人的,好在接入难度不大,网上资料比较丰富,希望此文章可以给各位带来帮助,对于海外支付有兴趣的可以和我来讨论。

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