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Informations about the package container
Container
gcworld/container implements the PSR-11 container read interface for PHP 8.4
and later, with additional APIs for registering eager services, lazy factories, typed framework services, and
independently named container instances.
Version
1.2.0
Installation
Basic usage
The default container is shared for the lifetime of the PHP process:
Calling set() for an existing identifier throws ItemAlreadyExistsException. Use overwrite() when replacement of
a general service is intentional. Calling get() for an unknown identifier throws ItemNotFoundException, which
implements PSR-11's NotFoundExceptionInterface. Both set() and overwrite() reject null values with an
InvalidItemException.
Lazy services
Any callable registered in the container is treated as a zero-argument factory. The factory is invoked on the first
get(), and its result replaces the factory in the container:
has() and getItemKeys() inspect the container without resolving factories. If a factory throws, it remains
registered and a later call to get() will retry it.
Because callable values are interpreted as factories, callable service objects are not supported as ordinary values. A factory should also return a non-callable value so that the resolved service remains cached.
Composer bootstrap
Applications can populate the container from a Composer autoload file. For example, add a project-owned bootstrap
file to the application's composer.json:
The bootstrap can register eager services and lazy factories:
Run composer dump-autoload after adding or moving an autoload file.
Typed framework services
Frequently used framework services have dedicated setters and getters. These methods preserve native return types and provide IDE completion without requiring casts.
| Identifier | Setter | Getter | Value type |
|---|---|---|---|
common |
setCommon() |
getCommon() |
CommonInterface or callable |
user |
setUser() |
getUser() |
UserInterface or callable |
twig |
setTwig() |
getTwig() |
TwigInterface or callable |
globals |
setGlobals() |
getGlobals() |
GlobalsInterface |
router |
setRouter() |
getRouter() |
RoutingInterface or callable |
page_wrapper |
setPageWrapper() |
getPageWrapper() |
PageWrapper or callable |
ui_core |
setUICore() |
getUICore() |
UICoreInterface or callable |
object_manager |
setObjectManager() |
getObjectManager() |
ObjectManager or callable |
exception_logger |
setExceptionLogger() |
getExceptionLogger() |
ExceptionLoggerInterface or callable |
These identifiers are reserved, including case variants, and cannot be registered through set() or overwrite().
The dedicated setters reject duplicate registrations.
Named instances
Use a name when an application needs an isolated container:
Repeated calls with the same name return the same instance. Different names have independent service collections.
Compatibility notes
- Service identifiers are case-sensitive, except when enforcing the reserved typed-service identifiers.
nullis not a valid service value;set()andoverwrite()throwInvalidItemExceptionwhen givennull.- Container instances and their services remain in static memory for the lifetime of the PHP process.
- Lazy factories receive no arguments.
Development
Install dependencies and run the complete quality suite:
The suite runs PHP syntax checks, PHPStan, PHP_CodeSniffer, and PHPUnit. This library intentionally does not commit
composer.lock, allowing consuming applications to resolve dependencies within their own compatibility constraints.
All versions of container with dependencies
ext-json Version *
gcworld/common Version >=2.7.19
gcworld/database Version >=2.7.1
gcworld/globals Version >=4.0.3
gcworld/interfaces Version >=4.4.12
gcworld/objectmanager Version >=2.8.1
gcworld/orm Version >=6.4.5
gcworld/routing Version >=5.1.2
gcworld/utilities Version >=2.1.3
symfony/yaml Version ^6.4
ramsey/uuid Version ^4.6
psr/container Version ^2.0