154 lines
7.0 KiB
Markdown
154 lines
7.0 KiB
Markdown
# league/config
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[](https://packagist.org/packages/league/config)
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[](https://packagist.org/packages/league/config)
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[](LICENSE)
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[](https://github.com/thephpleague/config/actions?query=workflow%3ATests+branch%3Amain)
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[](https://scrutinizer-ci.com/g/thephpleague/config/code-structure)
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[](https://scrutinizer-ci.com/g/thephpleague/config)
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[](https://www.colinodell.com/sponsor)
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**league/config** helps you define nested configuration arrays with strict schemas and access configuration values with dot notation. It was created by [Colin O'Dell][@colinodell].
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## 📦 Installation
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This project requires PHP 7.4 or higher. To install it via [Composer] simply run:
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```bash
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composer require league/config
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```
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## 🧰️ Basic Usage
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The `Configuration` class provides everything you need to define the configuration structure and fetch values:
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```php
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use League\Config\Configuration;
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use Nette\Schema\Expect;
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// Define your configuration schema
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$config = new Configuration([
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'database' => Expect::structure([
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'driver' => Expect::anyOf('mysql', 'postgresql', 'sqlite')->required(),
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'host' => Expect::string()->default('localhost'),
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'port' => Expect::int()->min(1)->max(65535),
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'ssl' => Expect::bool(),
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'database' => Expect::string()->required(),
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'username' => Expect::string()->required(),
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'password' => Expect::string()->nullable(),
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]),
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'logging' => Expect::structure([
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'enabled' => Expect::bool()->default($_ENV['DEBUG'] == true),
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'file' => Expect::string()->deprecated("use logging.path instead"),
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'path' => Expect::string()->assert(function ($path) { return \is_writeable($path); })->required(),
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]),
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]);
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// Set the values, either all at once with `merge()`:
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$config->merge([
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'database' => [
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'driver' => 'mysql',
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'port' => 3306,
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'database' => 'mydb',
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'username' => 'user',
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'password' => 'secret',
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],
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]);
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// Or one-at-a-time with `set()`:
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$config->set('logging.path', '/var/log/myapp.log');
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// You can now retrieve those values with `get()`.
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// Validation and defaults will be applied for you automatically
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$config->get('database'); // Fetches the entire "database" section as an array
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$config->get('database.driver'); // Fetch a specific nested value with dot notation
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$config->get('database/driver'); // Fetch a specific nested value with slash notation
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$config->get('database.host'); // Returns the default value "localhost"
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$config->get('logging.path'); // Guaranteed to be writeable thanks to the assertion in the schema
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// If validation fails an `InvalidConfigurationException` will be thrown:
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$config->set('database.driver', 'mongodb');
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$config->get('database.driver'); // InvalidConfigurationException
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// Attempting to fetch a non-existent key will result in an `InvalidConfigurationException`
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$config->get('foo.bar');
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// You could avoid this by checking whether that item exists:
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$config->exists('foo.bar'); // Returns `false`
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```
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## 📓 Documentation
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Full documentation can be found at [config.thephpleague.com][docs].
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## 💭 Philosophy
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This library aims to provide a **simple yet opinionated** approach to configuration with the following goals:
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- The configuration should operate on **arrays with nested values** which are easily accessible
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- The configuration structure should be **defined with strict schemas** defining the overall structure, allowed types, and allowed values
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- Schemas should be defined using a **simple, fluent interface**
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- You should be able to **add and combine schemas but never modify existing ones**
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- Both the configuration values and the schema should be **defined and managed with PHP code**
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- Schemas should be **immutable**; they should never change once they are set
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- Configuration values should never define or influence the schemas
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As a result, this library will likely **never** support features like:
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- Loading and/or exporting configuration values or schemas using YAML, XML, or other files
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- Parsing configuration values from a command line or other user interface
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- Dynamically changing the schema, allowed values, or default values based on other configuration values
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If you need that functionality you should check out other libraries like:
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- [symfony/config]
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- [symfony/options-resolver]
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- [hassankhan/config]
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- [consolidation/config]
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- [laminas/laminas-config]
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## 🏷️ Versioning
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[SemVer](http://semver.org/) is followed closely. Minor and patch releases should not introduce breaking changes to the codebase.
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Any classes or methods marked `@internal` are not intended for use outside this library and are subject to breaking changes at any time, so please avoid using them.
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## 🛠️ Maintenance & Support
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When a new **minor** version (e.g. `1.0` -> `1.1`) is released, the previous one (`1.0`) will continue to receive security and critical bug fixes for *at least* 3 months.
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When a new **major** version is released (e.g. `1.1` -> `2.0`), the previous one (`1.1`) will receive critical bug fixes for *at least* 3 months and security updates for 6 months after that new release comes out.
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(This policy may change in the future and exceptions may be made on a case-by-case basis.)
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## 👷️ Contributing
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Contributions to this library are **welcome**! We only ask that you adhere to our [contributor guidelines] and avoid making changes that conflict with our Philosophy above.
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## 🧪 Testing
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```bash
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composer test
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```
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## 📄 License
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**league/config** is licensed under the BSD-3 license. See the [`LICENSE.md`][license] file for more details.
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## 🗺️ Who Uses It?
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This project is used by [league/commonmark][league-commonmark].
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[docs]: https://config.thephpleague.com/
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[@colinodell]: https://www.twitter.com/colinodell
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[Composer]: https://getcomposer.org/
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[PHP League]: https://thephpleague.com
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[symfony/config]: https://symfony.com/doc/current/components/config.html
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[symfony/options-resolver]: https://symfony.com/doc/current/components/options_resolver.html
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[hassankhan/config]: https://github.com/hassankhan/config
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[consolidation/config]: https://github.com/consolidation/config
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[laminas/laminas-config]: https://docs.laminas.dev/laminas-config/
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[contributor guidelines]: https://github.com/thephpleague/config/blob/main/.github/CONTRIBUTING.md
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[license]: https://github.com/thephpleague/config/blob/main/LICENSE.md
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[league-commonmark]: https://commonmark.thephpleague.com
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