Flaphl Injection Element

Dependency injection container abstractions pulled from Flaphl elements.

Installation

composer require flaphl/injection

Features

• PSR-11 Container compliance - Full compatibility with PSR Container interfaces
• Advanced dependency injection - Constructor injection, method injection, and property injection
• Service configuration - Multiple configuration formats (PHP, XML, Directory)
• Container compilation - Optimized container dumping and preloading
• Parameter management - Environment variable integration and parameter bags
• Contextual binding - Advanced service resolution with context awareness
• Comprehensive testing - 354 tests with 860 assertions ensuring reliability

Basic Usage

use Flaphl\Element\Injection\ContainerBuilder;

// Create and configure container
$builder = new ContainerBuilder();

// Register services
$builder->register('service_id', MyService::class)
    ->addArgument('%parameter%')
    ->addMethodCall('setDependency', ['@dependency']);

// Set parameters
$builder->setParameter('parameter', 'value');

// Build container
$container = $builder->getContainer();

// Retrieve services
$service = $container->get('service_id');

Configuration Formats

PHP Configuration

// config/services.php
return [
    'parameters' => [
        'app.name' => 'My Application'
    ],
    'services' => [
        'my_service' => [
            'class' => MyService::class,
            'arguments' => ['%app.name%']
        ]
    ]
];

XML Configuration

<!-- config/services.xml -->
<container>
    <parameters>
        <parameter key="app.name">My Application</parameter>
    </parameters>
    <services>
        <service id="my_service" class="MyService">
            <argument>%app.name%</argument>
        </service>
    </services>
</container>

Highlighted Features

• Container compilation for production optimization
• Service tagging for discovery and grouping
• Contextual binding for complex dependency resolution
• Parameter validation and type casting
• Environment variable integration
• Deprecation handling with migration paths

License

This library is released under the MIT License.