php Composer/Laravel：如何添加/更新特定包

Composer/Laravel: How to add/update a specific package

提问by adamj

How do you add/update a specific package using composer? I'm using the latest Laravel as well not sure if it matters but anything that can help to determine the answer.

你如何使用 composer 添加/更新特定的包？我也在使用最新的 Laravel，不确定它是否重要，但任何有助于确定答案的东西。

I have also tried the following from an old Stackoverflow post I had found, but it didn't work for me. It appended the package to composer.json and then proceeded to update everything anyways. Here is the link: How to update a single library with Composer?

我还尝试了我发现的旧 Stackoverflow 帖子中的以下内容，但它对我不起作用。它将包附加到 composer.json ，然后继续更新所有内容。这是链接：如何使用 Composer 更新单个库？

And here is the package I tried to add to my project: https://github.com/barryvdh/laravel-dompdf

这是我尝试添加到我的项目中的包：https: //github.com/barryvdh/laravel-dompdf

Thank you very much for your time and help!

非常感谢您的时间和帮助！

Edit:

编辑：

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Require and update are not working they update everything as well. Is it possible that I'm running the command incorrectly? I'm still green behind the ears when it comes to composer :S

Require 和 update 不起作用，它们也会更新所有内容。是否有可能我错误地运行了命令？说到作曲家，我仍然不以为然：S

$ composer require barryvdh/laravel-dompdf
lease provide a version constraint for the barryvdh/laravel-dompdf requirement: *
/composer.json has been updated
oading composer repositories with package information
pdating dependencies (including require-dev)
 - Removing orchestra/testbench (v2.1.1)
 - Removing symfony/security (v2.4.3)
 - Removing symfony/translation (v2.4.3)
 - Installing symfony/translation (v2.4.6)
   Loading from cache

 - Removing symfony/http-foundation (v2.4.3)
 - Installing symfony/http-foundation (v2.4.6)
   Loading from cache

 - Removing symfony/event-dispatcher (v2.4.3)
 - Installing symfony/event-dispatcher (v2.5.0)
   Loading from cache

 - Removing symfony/debug (v2.4.3)
 - Installing symfony/debug (v2.4.6)
   Loading from cache

 - Removing symfony/http-kernel (v2.4.3)
 - Installing symfony/http-kernel (v2.4.6)
   Loading from cache

 - Removing symfony/routing (v2.4.3)
 - Installing symfony/routing (v2.4.6)
   Loading from cache

 - Removing symfony/process (v2.4.3)
 - Installing symfony/process (v2.4.6)
   Loading from cache

 - Removing symfony/finder (v2.4.3)
 - Installing symfony/finder (v2.4.6)
   Loading from cache

 - Removing symfony/dom-crawler (v2.4.3)
 - Installing symfony/dom-crawler (v2.4.6)
   Loading from cache

 - Removing symfony/css-selector (v2.4.3)
 - Installing symfony/css-selector (v2.4.6)
   Loading from cache

 - Removing symfony/console (v2.4.3)
 - Installing symfony/console (v2.4.6)
   Loading from cache

 - Removing symfony/browser-kit (v2.4.3)
 - Installing symfony/browser-kit (v2.4.6)
   Loading from cache

 - Removing swiftmailer/swiftmailer (v5.1.0)
 - Installing swiftmailer/swiftmailer (v5.2.0)
   Loading from cache

 - Removing stack/builder (v1.0.1)
 - Installing stack/builder (v1.0.2)
   Loading from cache

  - Removing patchwork/utf8 (v1.1.21)
  - Installing patchwork/utf8 (v1.1.23)
    Loading from cache

  - Removing nesbot/carbon (1.8.0)
  - Installing nesbot/carbon (1.9.0)
    Loading from cache

  - Removing monolog/monolog (1.9.0)
  - Installing monolog/monolog (1.10.0)
    Loading from cache

  - Removing symfony/filesystem (v2.4.3)
  - Installing symfony/filesystem (v2.5.0)
    Loading from cache

  - Installing symfony/security-core (v2.4.6)
    Loading from cache

  - Removing laravel/framework (v4.1.28)
  - Installing laravel/framework (v4.1.30)
    Loading from cache

  - Removing chumper/datatable (2.2.2)
  - Installing chumper/datatable (2.3)
    Loading from cache

  - Removing ivaynberg/select2 (3.4.6)
  - Installing ivaynberg/select2 (3.4.8)
    Loading from cache

  - Installing phenx/php-font-lib (0.2.2)
    Loading from cache

  - Installing dompdf/dompdf (v0.6.1)
    Loading from cache

  - Installing barryvdh/laravel-dompdf (v0.3.1)
    Loading from cache

symfony/security-core suggests installing symfony/validator (For using the user password constraint)
symfony/security-core suggests installing symfony/expression-language (For using the expression voter)
Generating autoload files
Compiling component files
Generating optimized class loader

回答by SUB0DH

I tried the following and it seemed to work for me.

我尝试了以下方法，它似乎对我有用。

You'll have to first add barryvdh/laravel-dompdfto the composer.jsonfile. Then perform the following:

您必须先添加barryvdh/laravel-dompdf到composer.json文件中。然后执行以下操作：

 composer update barryvdh/laravel-dompdf --lock

回答by 0xshalaby

here

这里

composer update barryvdh/laravel-dompdf

composer docs

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