Class Symfony\Component\DependencyInjection\Container

`implements`	`ContainerInterface, ResetInterface`

Container is a dependency injection container.

It gives access to object instances (services). Services and parameters are simple key/pair stores. The container can have four possible behaviors when a service does not exist (or is not initialized for the last case):

EXCEPTION_ON_INVALID_REFERENCE: Throws an exception at compilation time (the default)
NULL_ON_INVALID_REFERENCE: Returns null
IGNORE_ON_INVALID_REFERENCE: Ignores the wrapping command asking for the reference (for instance, ignore a setter if the service does not exist)
IGNORE_ON_UNINITIALIZED_REFERENCE: Ignores/returns null for uninitialized services or invalid references
RUNTIME_EXCEPTION_ON_INVALID_REFERENCE: Throws an exception at runtime

Symfony\Component\DependencyInjection\Container implements ContainerInterface, ResetInterface
- Symfony\Component\DependencyInjection\ContainerBuilder implements TaggedContainerInterface
  - Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationContainerBuilder

Methods


					
	public

__construct(ParameterBagInterface $parameterBag = null)

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::__construct()


					
	public

compile(): void

Compiles the container.

This method does two things:

Parameter values are resolved;
The parameter bag is frozen.

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::compile()


					
	public

isCompiled(): bool

Returns true if the container is compiled.


					
	public

getParameterBag(): ParameterBagInterface

Gets the service container parameter bag.


					
	public

Gets a parameter.

Throws

Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException

if the parameter is not defined

Implements

Symfony\Component\DependencyInjection\ContainerInterface::getParameter()


					
	public

hasParameter(string $name): bool

Implements

Symfony\Component\DependencyInjection\ContainerInterface::hasParameter()


					
	public

Implements

Symfony\Component\DependencyInjection\ContainerInterface::setParameter()


					
	public

set(string $id, ?object $service): void

Sets a service.

Setting a synthetic service to null resets it: has() returns false and get() behaves in the same way as if the service was never created.

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::set()

Implements

Symfony\Component\DependencyInjection\ContainerInterface::set()


					
	public

has(string $id): bool

Returns true if the container can return an entry for the given identifier. Returns false otherwise.

has($id) returning true does not mean that get($id) will not throw an exception. It does however mean that get($id) will not throw a NotFoundExceptionInterface.

Parameters

$id

Identifier of the entry to look for.

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::has()

Implements

Psr\Container\ContainerInterface::has()


					
	public

get(string $id, int $invalidBehavior = self::EXCEPTION_ON_INVALID_REFERENCE): ?object

Gets a service.

Parameters

$id

Identifier of the entry to look for.

Returns

Entry.

Throws

`Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException`	When a circular reference is detected
`Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException`	When the service is not defined
`Exception`	if an exception has been thrown when the service has been resolved

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::get()

Implements

Psr\Container\ContainerInterface::get()


					
	private
					static

make(self $container, string $id, int $invalidBehavior): ?object

Creates a service.

As a separate method to allow "get()" to use the really fast ?? operator.


					
	public

initialized(string $id): bool

Returns true if the given service has actually been initialized.

Implements

Symfony\Component\DependencyInjection\ContainerInterface::initialized()


					
	public

reset(): void

Implements

Symfony\Contracts\Service\ResetInterface::reset()


					
	public

getServiceIds(): string[]

Gets all service ids.

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::getServiceIds()


					
	public

getRemovedIds(): array

Gets service ids that existed at compile time.

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::getRemovedIds()


					
	public
					static

camelize(string $id): string

Camelizes a string.


					
	public
					static

underscore(string $id): string

A string to underscore.


					
	protected

load(string $file): mixed

Creates a service by requiring its factory file.


					
	protected

getEnv(string $name): mixed

Fetches a variable from the environment.

Throws

Symfony\Component\DependencyInjection\Exception\EnvNotFoundException

When the environment variable is not found and has no default value

Overriden by

Symfony\Component\DependencyInjection\ContainerBuilder::getEnv()


					
	private

__clone()

Constants inherited from Symfony\Component\DependencyInjection\ContainerInterface
`RUNTIME_EXCEPTION_ON_INVALID_REFERENCE, EXCEPTION_ON_INVALID_REFERENCE, NULL_ON_INVALID_REFERENCE, IGNORE_ON_INVALID_REFERENCE, IGNORE_ON_UNINITIALIZED_REFERENCE`

Properties
`protected`		`$parameterBag`	#
`protected`		`$services = []`	#
`protected`		`$privates = []`	#
`protected`		`$fileMap = []`	#
`protected`		`$methodMap = []`	#
`protected`		`$factories = []`	#
`protected`		`$aliases = []`	#
`protected`		`$loading = []`	#
`protected`		`$resolving = []`	#
`protected`		`$syntheticIds = []`	#
`private`	`array`	`$envCache = []`	#
`private`	`bool`	`$compiled = false`	#
`private`	`Closure`	`$getEnv`	#
`private static`		`$make`	#

Namespaces

Classes

Interfaces

Traits

Class Symfony\Component\DependencyInjection\Container

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Parameters

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