php - 在 Paypal 上安装 Merchant SDK for Express Checkout API

Question

如标题所示，我正在尝试在 Paypal 上安装 Merchant SDK for Express Checkout API。

composer.json

{
    "name": "paypal/merchant-sdk-php",
    "description": "PayPal Merchant SDK for PHP",
    "keywords": ["paypal", "php", "sdk"],
    "homepage": "https://developer.paypal.com",
    "license": "proprietary",
    "authors": [
        {
            "name": "PayPal",
            "homepage": "https://github.com/paypal/merchant-sdk-php/contributors"
        }
    ],
    "require": {
              "php": ">=5.3",
              "ext-curl": "*",
              "paypal/merchant-sdk-php":"v3.6.106"
            },
    "autoload": {
        "psr-0": {
            "PayPal\\Service": "lib/",
            "PayPal\\CoreComponentTypes": "lib/",
            "PayPal\\EBLBaseComponents": "lib/",
            "PayPal\\EnhancedDataTypes": "lib/",
            "PayPal\\PayPalAPI": "lib/"
        }
    } 
}

当我运行 composer update 时，出现以下错误:

Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested package paypal/merchant-sdk-php 1.0.0 could not be found.

Potential causes:
 - A typo in the package name
 - The package is not available in a stable-enough version according to your min
imum-stability setting
   see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> f
or more details.

Read <http://getcomposer.org/doc/articles/troubleshooting.md> for further common
 problems.

我尝试安装另一个包，按钮管理器 SDK。这需要我将 "require" 中的最后一行更改为 "paypal/buttonmanager-sdk-php":"v3.6.106"这奏效了。

我不知道为什么搜索1.0.0版本的商户SDK会报找不到的错误。

我正在接受官方页面的说明 here

请深入了解我的问题，并在需要时询问任何其他信息。

Answer 1

在您的 composer.json 中只保留必需的内容。如果您只是创建一个需要通过composer安装的组件/包，您需要定义名称、描述、关键字等。

因此，如果您的项目需要任何包，只需保留包名和版本名即可。所以你的 composer.json 看起来像

{
    "require": {
         "paypal/merchant-sdk-php": "3.6.106"
    }
}

或者，您可以通过 composer require paypal/merchant-sdk-php 并提供版本名称。