Symfony 6.3 中的新功能：序列化程序调试命令【转载】

序列化[程序组件](https://symfony.com/serializer)处理数据结构的（反）序列化， 包括对象图，转换为数组结构或其他格式，如XML和JSON。 这是一个强大的组件，但它的大部分复杂性都是隐藏的，这使得它 难以调试复杂情况。

在Symfony 6.2中，我们在[Symfony分析器](https://symfony.com/doc/current/profiler.html)中添加了一个新的序列化程序面板 帮助调试问题。在Symfony 6.3中，我们添加了另一个工具来帮助你：**新的[debug：serializer]()命令**。

此命令转储给定类的序列化程序元数据，这有助于 查找元数据配置中的任何问题：

```shell
php bin/console debug:serializer 'App\Entity\Book'

App\Entity\Book
  ---------------

+----------+------------------------------------------------------------+
  | Property | Options                                                    |
  +----------+------------------------------------------------------------+
  | name     | [                                                          |
  |          |   "groups" => [                                            |
  |          |       "book:read",                                         |
  |          |       "book:write",                                        |
  |          |   ]                                                        |
  |          |   "maxDepth" => 1,                                         |
  |          |   "serializedName" => "book_name"                          |
  |          |   "ignore" => false                                        |
  |          |   "normalizationContexts" => [],                           |
  |          |   "denormalizationContexts" => []                          |
  |          | ]                                                          |
  | isbn     | [                                                          |
  |          |   "groups" => [                                            |
  |          |       "book:read",                                         |
  |          |   ]                                                        |
  |          |   "maxDepth" => null,                                      |
  |          |   "serializedName" => null                                 |
  |          |   "ignore" => false                                        |
  |          |   "normalizationContexts" => [],                           |
  |          |   "denormalizationContexts" => []                          |
  |          | ]                                                          |
  +----------+------------------------------------------------------------+
```
此命令加入了 Symfony 提供的其他内置命令， 总共 12 个命令：debug
```shell
debug:config           "Dump the current configuration for an extension"
debug:container        "Display current services for an application"
debug:autowiring       "List classes/interfaces you can use for autowiring"
debug:dotenv           "Lists all dotenv files with variables and values"
debug:event-dispatcher "Display configured listeners for an application"
debug:router           "Display current routes for an application"
debug:serializer       "Display serialization information for classes"
debug:translation      "Display translation messages information"
debug:validator        "Display validation constraints for classes"
debug:form             "Display form type information"
debug:firewall         "Display information about your security firewall(s)"
debug:twig             "Show a list of twig functions, filters, globals and tests"
```

原文链接

https://symfony.com/blog/new-in-symfony-6-3-serializer-debug-command

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