如何使用composer获取根包路径 [英] How to get the root package path using composer

问题描述

我正在开发一个名为 php-app-config 的 PHP 组件，使用 作曲家.这个组件，一旦被另一个项目需要，并使用 composer install 安装，应该在 根包，类似于root_package/config/config.yml.

I'm developing a PHP component called php-app-config using composer. This component, once required by another project, and installed using composer install, should look for config files inside the config folder of the root package, something like root_package/config/config.yml.

./config/config.yml 应该只存在于根包中，而不存在于 composer.json 中require:"导入的组件中，如下面:

The ./config/config.yml should exists only in the root package and not inside the component imported by the "require:" in composer.json, as below:

▾ root-package/
  ▸ bin/
  ▸ build/
  ▾ config/
    ▸ locales/
      config.yml
  ▸ src/
  ▸ tests/
  ▾ vendor/
    ▸ composer/
    ▸ phpdocumentor/
    ▸ phpspec/
    ▸ phpunit/
    ▾ robotdance/
      ▾ php-app-config/
        ▾ src/                                                                                                                                                                                               
      Config.php -> how to get the root "config/config.yml" path from here?
        ▸ tests/
      composer.json
      composer.lock
      phpunit.xml
      README.md

根包可以是 Web 应用程序或命令行实用程序.有没有办法使用composer获取根包路径?如果没有，更好的方法是什么?

The root package can be a web app or command line utility. Is there any way to get the root package path using composer? If not, what is the better way?

推荐答案

使用 ReflectionClass:

Using ReflectionClass:

$reflection = new \ReflectionClass(\Composer\Autoload\ClassLoader::class);
$vendorDir = dirname(dirname($reflection->getFileName()));

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