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Yii Framework 3.0 API Documentation

This is the Yii Framework API Documentation. Here you will find detailed information about all classes provided by the Framework. Below you find a list of the existing classes, interfaces, and traits, ordered by their fully qualified name (including the namespace). Each of them has a dedicated page which contains a description about the purpose of the class, a list of the available methods, properties and constants, and detailed description on how to use each of them.

On this page you find all the classes included in version 3.0 of the framework. You can use the dropdown menu on the top right to switch between versions.

You can search API documentation using the search form on the top. You can search for class names and also method and property names, e.g. ActiveRecord.save() or just .save() or ::save().

This page is also available in JSON format:
curl https://www.yiiframework.com/doc/api/3.0/definitions -H 'Accept: application/json'

Class	Description
Yiisoft\Definitions\ArrayDefinition	Builds an object by array config.
Yiisoft\Definitions\CallableDefinition	Builds an object by executing a callable injecting dependencies based on types used in its signature.
Yiisoft\Definitions\Contract\DefinitionInterface	Definition is describing a way to create and configure a service or an object.
Yiisoft\Definitions\Contract\ReferenceInterface	Reference points to another named definition. Usually it is another service in the container or another object definition in the factory.
Yiisoft\Definitions\DefinitionStorage	Stores service definitions and checks if a definition could be instantiated.
Yiisoft\Definitions\DynamicReference	The `DynamicReference` defines a dependency to a service not defined in the container.
Yiisoft\Definitions\DynamicReferencesArray	Allows creating an array of dynamic references from key-reference pairs.
Yiisoft\Definitions\Exception\CircularReferenceException	`CircularReferenceException` is thrown when DI configuration contains self-references of any level and thus could not be resolved.
Yiisoft\Definitions\Exception\InvalidConfigException	`InvalidConfigException` is thrown when definition configuration is not valid.
Yiisoft\Definitions\Exception\NotInstantiableClassException	`NotInstantiableClassException` is thrown when a class can not be instantiated for whatever reason.
Yiisoft\Definitions\Exception\NotInstantiableException	`NotInstantiableException` represents an exception caused by incorrect dependency injection container or factory configuration or usage.
Yiisoft\Definitions\Helpers\ArrayDefinitionHelper
Yiisoft\Definitions\Helpers\DefinitionExtractor	This class extracts dependency definitions from type hints of a function or a class constructor parameters.
Yiisoft\Definitions\Helpers\DefinitionResolver
Yiisoft\Definitions\Helpers\DefinitionValidator	Definition validator checks if definition is valid.
Yiisoft\Definitions\Helpers\ExceptionHelper
Yiisoft\Definitions\Helpers\Normalizer	Normalizer definition from configuration to an instance of {@see DefinitionInterface}.
Yiisoft\Definitions\ParameterDefinition	Parameter definition resolves an object based on information from `ReflectionParameter` instance.
Yiisoft\Definitions\Reference	The `Reference` defines a dependency to a service in the container or factory in another service definition.
Yiisoft\Definitions\ReferencesArray	Allows creating an array of references from key-reference pairs.
Yiisoft\Definitions\ValueDefinition	Value definition resolves value passed as is.