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Package php-attributes
Short Description This package provides an easy way to use PHP 8 Attributes
License MIT
Homepage https://github.com/mbunge/php-attributes
Informations about the package php-attributes
PHP Attributes
This package provides an easy way to use and apply PHP 8 Attributes and allows quick real-world implementations meta-data or annotation related features like Routes, Events, DB Relations.
Features
- Apply PHP 8 attributes to a class and class components
- Automatically apply attributes to autoloaded classes
- Restrict attributes to filter condition of class name, namespace or class reflection
See Upcoming features of next release.
Concept
php-attributes uses a decorated composer autoloader and notifies a handler with loaded class name. The attributes for class components get resolved using reflections.
This package supports attributes for
- classes
- class constants
- class methods
- class method parameters
- class properties.
Install
Via Composer
Usage
Instantiate the attribute handler Mbunge\PhpAttributes\AttributeResolver
via factory
PhpAttributes\PhpAttributesFactory::createResolver()
or direct.
Attributes of traget class components get resolved by passed class name as string
to Mbunge\PhpAttributes\Resolver\AttributeResolver::resolve(string $class)
.
All resolved attributes returned as an array of
data-transfer object (dto) Mbunge\PhpAttributes\Resolver\ResolvedAttributesDto
.
Run multiple resolver
\Mbunge\PhpAttributes\Resolver\ChainedAttributeResolver
receives a list of resolvers, execute each resolver and merge reolved results.
This is usefull when resolvers with different contexts need to execute at once.
Restrict attributes to filter condition of class name, namespace or class reflection
Mbunge\PhpAttributes\Resolver\FilterClassAttributeResolverDecorator
decorates an instance of attribute handler with
any callable filter.
See FilterClassAttributeResolverDecoratorTest for filter examples
Present resolved attributes
Resolved attributes provide declared meta-data.
Pass resolved attributes to presenter and perform context specifc actions.
Examples
All examples use a small Application implementation.
- presenter.
Chain presenters
\Mbunge\PhpAttributes\Presenter\ChainedAttributePresenter
receives a list of presenters, execute each presenter and merge results.
This is usefull when attributes needs to present to different contexts, like application routeing, event dispatcher, etc.
See ChainedAttributePresenterTest for detailed implementation.
Attribute handler
Avoid blueprint code and use handler to resolve attributes and present them afterwards.
Automatically apply attributes to autoloaded classes
The libray provides a composer classloader decorator which extends composer autoloader with the ability to execute attribute handler when class got autoloaded.
See also packaged autoload.
Use packaged autoload
Replace composer default autoload /vendor/autoload
with packaged autoload /vendor/mbunge/php-attributes/autoload.php
The packed autoload applies all attributes to autoloaded classes.
Caveats
PHP 8 Attributes will not solve all problems.
Automatically apply logic through meta-data declarations sounds cool, but requires a lot of convention and my lead into complexity and may be hard to debug!
SOLID may get violated as well, since attributes are some sort of dependecy. Use attributes only for helpful tasks and without violating clean code priciples!
Furthermore, it is helpful to provide cli tools for attribute analytics and debugging.
Change log
Please see CHANGELOG for more information on what has changed recently.
Testing
Contributing
Please see CODE_OF_CONDUCT for details.
Deployment
Only maintainers are allowed to deploy new versions!
- Run
composer run release
which will run tests and on success update changelog, package version and creates a release tag - switch to master branch and merge develop branch
- Run
composer run deploy
which will run tests and on success push tags, master branch and develop branch
Security
If you discover any security related issues, please email [email protected] instead of using the issue tracker.
Credits
- Marco Bunge
- All Contributors
License
The MIT License (MIT). Please see License File for more information.
Further read
- In-depth PHP Attributes by stitcher.io: https://www.stitcher.io/blog/attributes-in-php-8
All versions of php-attributes with dependencies
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