Php Codeigniter：如何获得paypal支付的购物车价值

这是paypal控制器代码：

---

我想知道如何才能从购物车中获取数据，以便我能够在paypal中添加价值，以便用户能够继续使用paypal？请帮忙

为此使用CI购物车库方法

$this->cart->total()

你得到了总金额的价格与此，如果你想使折扣超过这个你需要做一个方法独家为这个

[编辑]

当您获得总金额时，请根据Paypal文档使用Curl解析Paypal库，您可以使用Curl方法解析该值

curl -v -X 'POST' 'https://api.sandbox.paypal.com/v1/invoicing/invoices' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer <Access-Token>' \
-d '{
  "merchant_info": {
    "email": "dennis@sample.com",
    "first_name": "Dennis",
    "last_name": "Doctor",
    "business_name": "Medical Professionals, LLC",
    "phone": {
      "country_code": "001",
      "national_number": "5032141716"
    },
    "address": {
      "line1": "1234 Main St.",
      "city": "Portland",
      "state": "OR",
      "postal_code": "97217",
      "country_code": "US"
    }
  },
  "billing_info": [
  {
    "email": "example@example.com"
  }
  ],
  "items": [
  {
    "name": "Sutures",
    "quantity": 100,
    "unit_price": {
    "currency": "USD",
    "value": 5
    }
  }
  ],
  "note": "Medical Invoice 16 Jul, 2013 PST",
  "payment_term" :{
      "term_type": "NET_45"
  },
  "shipping_info": {
    "first_name": "Sally",
    "last_name": "Patient",
    "business_name": "Not applicable",
    "address": {
    "line1": "1234 Broad St.",
    "city": "Portland",
    "state": "OR",
    "postal_code": "97216",
    "country_code": "US"
    }
  }
}'

---

来源：CodeIgniter文档和PayPal API文档

根据控制器中的代码判断，我认为您可以使用PayPal库，在do_purchase函数中通过循环购物车内容添加产品：

foreach ($this->cart->contents() as $item) {
    $this->paypal->add($item['name'], $item['price'], $item['qty']);
}

$total = $this->cart->total();

您可以了解更多关于CodeIgniter的购物车类的信息

在一个完全不相关的注释中，您可以使用base_url作为函数，而不是向其附加字符串。例如，与cart/remove相比，它更具可读性/

curl -v -X 'POST' 'https://api.sandbox.paypal.com/v1/invoicing/invoices' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer <Access-Token>' \
-d '{
  "merchant_info": {
    "email": "dennis@sample.com",
    "first_name": "Dennis",
    "last_name": "Doctor",
    "business_name": "Medical Professionals, LLC",
    "phone": {
      "country_code": "001",
      "national_number": "5032141716"
    },
    "address": {
      "line1": "1234 Main St.",
      "city": "Portland",
      "state": "OR",
      "postal_code": "97217",
      "country_code": "US"
    }
  },
  "billing_info": [
  {
    "email": "example@example.com"
  }
  ],
  "items": [
  {
    "name": "Sutures",
    "quantity": 100,
    "unit_price": {
    "currency": "USD",
    "value": 5
    }
  }
  ],
  "note": "Medical Invoice 16 Jul, 2013 PST",
  "payment_term" :{
      "term_type": "NET_45"
  },
  "shipping_info": {
    "first_name": "Sally",
    "last_name": "Patient",
    "business_name": "Not applicable",
    "address": {
    "line1": "1234 Broad St.",
    "city": "Portland",
    "state": "OR",
    "postal_code": "97216",
    "country_code": "US"
    }
  }
}'

foreach ($this->cart->contents() as $item) {
    $this->paypal->add($item['name'], $item['price'], $item['qty']);
}

$total = $this->cart->total();