# factory
**Repository Path**: mirrors_yiisoft/factory
## Basic Information
- **Project Name**: factory
- **Description**: Object factory that is able to resolve dependencies from PSR-11 container
- **Primary Language**: Unknown
- **License**: BSD-3-Clause
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No
## Statistics
- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-19
- **Last Updated**: 2026-02-14
## Categories & Tags
**Categories**: Uncategorized
**Tags**: None
## README
Yii Factory
[](https://packagist.org/packages/yiisoft/factory)
[](https://packagist.org/packages/yiisoft/factory)
[](https://github.com/yiisoft/factory/actions/workflows/build.yml)
[](https://codecov.io/gh/yiisoft/factory)
[](https://dashboard.stryker-mutator.io/reports/github.com/yiisoft/factory/master)
[](https://github.com/yiisoft/factory/actions?query=workflow%3A%22static+analysis%22)
[](https://shepherd.dev/github/yiisoft/factory)
This package provides abstract object factory allowing to create objects by given definition
with dependencies resolved by a [PSR-11](https://www.php-fig.org/psr/psr-11/) container.
## Requirements
- PHP 8.0 - 8.5.
## Installation
The package could be installed with [Composer](https://getcomposer.org):
```shell
composer require yiisoft/factory
```
## General usage
The factory is useful if you need to create objects using [definition syntax](https://github.com/yiisoft/definitions)
and/or want to configure defaults for objects created.
```php
$container = new PSR11DependencyInjectionContainer();
$factoryConfig = [
EngineInterface::class => [
'class' => EngineMarkOne::class,
'__construct()' => [
'power' => 42,
],
]
];
$factory = new Factory($container, $factoryConfig);
$one = $factory->create(EngineInterface::class);
$two = $factory->create([
'class' => EngineInterface::class,
'__construct()' => [
'power' => 146,
],
]);
```
In the code above we define factory config specifying that when we need `EngineInterface`, an instance of `EngineMarkOne`
will be created with `power` constructor argument equals to 42. We also specify that all the dependencies requested by
the object created should be resolved by `PSR11DependencyInjectionContainer`.
First call to `create()` uses default configuration of `EngineInterface` as is. Second call specifies custom
configuration for `power` constructor argument. In this case, configuration specified is merged with default
configuration overriding its keys when the key name is the same.
### Tuning for production
By default, the factory validates definitions right when they are set. In production environment, it makes sense to
turn it off by passing `false` as a third constructor argument:
```php
$factory = new Factory($container, $factoryConfig, false);
```
### Strict factory
`StrictFactory` differs in that it processes only configured definitions.
When attempting to request an existing class that is not defined in the factory config,
a `NotFoundException` will be thrown.
```php
$container = new PSR11DependencyInjectionContainer();
$factoryConfig = [
EngineInterface::class => [
'class' => EngineMarkOne::class,
'__construct()' => [
'power' => 42,
],
]
];
$factory = new Factory($factoryConfig, $container);
$engine = $factory->create(EngineInterface::class);
// Throws `NotFoundException`
$factory->create(EngineMarkOne::class);
```
## Documentation
- [Internals](docs/internals.md)
If you need help or have a question, the [Yii Forum](https://forum.yiiframework.com/c/yii-3-0/63) is a good place for that.
You may also check out other [Yii Community Resources](https://www.yiiframework.com/community).
## License
The Yii Factory is free software. It is released under the terms of the BSD License.
Please see [`LICENSE`](./LICENSE.md) for more information.
Maintained by [Yii Software](https://www.yiiframework.com/).
## Support the project
[](https://opencollective.com/yiisoft)
## Follow updates
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