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Informations about the package container
Container
The container provides services to the application. In the Asgard framework, the container is often stored in the container variable.
- Installation
- Usage in the Asgard Framework
- Usage outside the Asgard Framework
- Registering a service
- Accessing a service
- Creating a new service instance
- Checking if a service exists
- Removing a service
- ContainerAware Trait
- Commands
Installation
If you are working on an Asgard project you don't need to install this library as it is already part of the standard libraries.
composer require asgard/container 0.*Usage in the Asgard Framework
The container is often accessible as a method parameter or through a singleton but it is not recommended.
Usage outside the Asgard Framework
$container = new \Asgard\Container\Container;
#or
$container = new \Asgard\Container\Container::singleton();Registering a service
$container->register('cache', function($container, $param) {
return new \Cache($param);
});
#or
$container['cache'] = new \Cache($param);
#or
$container->set('cache', new \Cache($param));Register a service without persistency:
$container->register('cache', function($container, $param) {
return new \Cache($param);
}, false);$container['cache'] will create a new instance every time it is called.
Accessing a service
$cache = $container->get('cache', [$param]);
#or
$cache = $container['cache'];If you call it multiple times, the container will make sure the same instance is returned every time.
Creating a new service instance
$cache = $container->make('cache', [$param]);Checking if a service exists
$container->has('cache');
#or
isset($container['cache']);Removing a service
$container->remove('cache');
#or
unset($container['cache']);ContainerAware Trait
This trait provides two methods:
- setContainer($container)
- getContainer()
and a protected member variable "$container".
To use it, add the following line in a class just after the opening bracket
use \Asgard\Container\ContainerAware;Commands
ListCommand
Show all the services loaded in the application.
Usage:
php console services [--defined] [--registered]--defined: to show where a service was defined
--registered: to shown where a service was registered
Contributing
Please submit all issues and pull requests to the asgardphp/asgard repository.
License
The Asgard framework is open-sourced software licensed under the MIT license
