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Package resolver
Short Description Dependency auto resolver for PHP 7 and 8
License MIT
Homepage https://github.com/acelot/resolver
Informations about the package resolver
Resolver
Resolver is a dependency auto resolver for PHP 7 and 8. Supports PSR-11 ContainerInterface
.
Installation
Why?
Imagine that you have a controller:
As you can see the controller requires UsersService
in constructor. To resolve this dependency you can just pass
the new instance of UsersService
. Let's do this:
It doesn't work, because UsersService
, in turn, requires UsersRepository
to access the data.
Okay, let's create the repository instance!
Sadly, it still doesn't work, because we encountering the new dependency! The repository, surprisingly, requires a database connection :)
You say "Eat this!".
Success! We have finally created the instance of UsersController
!
Now imagine that you have ten or hundred controllers like this?!
With Resolver you can greatly simplify creation of classes.
In what turns this code using Resolver:
And it's all.
How it works?
Resolver resolves the classes by using Reflection. Through reflection the Resolver finds out all dependencies of the class and all dependencies of dependencies and so on. When Resolver reaches the deepest dependency it starts creating instances of these one by one until the top class. The resolved classes are stored in local array to avoid re-resolving.
Available definitions
- FactoryDefinition (short alias
factory()
) - ObjectDefinition (short alias
object()
) - ValueDefinition (short alias
value()
)
Instance sharing
Resolved definitions can be shared between calls via ->shared()
method. This method available in FactoryDefinition
and ObjectDefinition
. ValueDefinition
is shared always by design.
Resolver (c) by Valeriy Protopopov.
Resolver is licensed under a MIT license.