The Clean Architecture in php

namespace
CleanPhp\Invoicer\Domain\Repository;
interface
RepositoryInterface {
public function
getById
(
$id
);
public function
getAll
();
public function
persist
(
$entity
);
public function
begin
();
public function
commit
();
}
Now let’s create some interfaces that represent the actual entities, that extend and inherit the
functionality of
RepositoryInterface
.
Customers
// src/Domain/Repository/CustomerRepositoryInterface.php
namespace
CleanPhp\Invoicer\Domain\Repository;
interface
CustomerRepositoryInterface
extends
RepositoryInterface {
}
Orders
// src/Domain/Repository/OrderRepositoryInterface.php
namespace
CleanPhp\Invoicer\Domain\Repository;
interface
OrderRepositoryInterface
extends
RepositoryInterface {
}
Invoices

---

Building Our Domain
108
// src/Domain/Repository/InvoiceRepositoryInterface.php
namespace
CleanPhp\Invoicer\Domain\Repository;
interface
InvoiceRepositoryInterface
extends
RepositoryInterface {
}
These repositories each represent an entity, and define a contract that each concrete repository
must follow. Additionally, we’ll use these interfaces to type-hint dependency injection in each
instance where we need them, so that we can ensure our classes will get the correct functionality
they need.
As part of our invoicing process, we need to find all orders that have not yet been invoiced. We
can define this need by adding a method to the
OrderRepositoryInterface
:
// src/Domain/Repository/OrderRepositoryInterface.php