如何使用 Laravel 5.6 升级 Carbon？

Question

我在 cmd 中试过“composer 需要 nesbot/carbon”，但我得到了这个：

Your requirements could not be resolved to an installable set of packages.

  Problem 1

    - laravel/framework v5.6.27 requires nesbot/carbon 1.25.* -> satisfiable by nesbot/carbon[1.25.0] but these conflict with your requirements or minimum-stability.
    - laravel/framework v5.6.27 requires nesbot/carbon 1.25.* -> satisfiable by nesbot/carbon[1.25.0] but these conflict with your requirements or minimum-stability.
    - laravel/framework v5.6.27 requires nesbot/carbon 1.25.* -> satisfiable by nesbot/carbon[1.25.0] but these conflict with your requirements or minimum-stability.
    - Installation request for laravel/framework (locked at v5.6.27, required as 5.6.*) -> satisfiable by laravel/framework[v5.6.27].


Installation failed, reverting ./composer.json to its original content.

Answer 1

我不建议在没有极其谨慎的情况下这样做，因为 Laravel 或任何其他依赖项可能需要非常严格的包版本。

话虽如此，Composer 确实包含了一个巧妙的别名版本技巧，可以通过在 中指定别名版本来解决这个问题composer.json：

"require": {
    ...
    "nesbot/carbon": "1.32.0 as 1.25.0"
},

请注意，as 1.25.0这会欺骗其他包，使其认为1.32.0等同于1.25.0依赖关系。这个技巧需要精确的版本。