require 和 require-dev 有什么区别?
我是 composer 的新手，我想知道 require 和 require-dev 之间的区别.作曲家网站没有很好地解释这两者之间的区别.
I'm new to the composer and I would like to know the difference between require and require-dev.
The composer website doesn't offer a good explanation the difference between these two.
我没有得到的部分是 列出开发此包或运行测试等所需的包.来自 作曲家官方文档.
The part that I don't get is Lists packages required for developing this package, or running tests, etc. from Composer Official Docs.
推荐答案
require-dev 包是对于您的项目工作来说不是必需的包，并且 不应包含在您项目的生产版本中.
The require-dev packages are packages that aren't necessary for your project to work and shouldn't be included in the production version of your project.
通常，这些是诸如 phpunit/phpunit 之类的包，您只会在开发期间使用.
Typically, these are packages such as phpunit/phpunit that you would only use during development.
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