Laminas Diactoros
Laminas Diactoros is a PHP library that provides PSR-7 (HTTP Message Interface) and PSR-17 (HTTP Factories) implementations for handling HTTP requests and responses. It offers immutable value objects representing HTTP messages, including request, response, URI, and stream objects, enabling standardized HTTP communication in PHP applications. The library is part of the Laminas Project, a continuation of the Zend Framework, and is widely used in middleware and API development.
Developers should use Laminas Diactoros when building PHP applications that require interoperability with PSR-7/PSR-17 compliant components, such as middleware, HTTP clients, or server-side frameworks. It is essential for creating decoupled, testable code in modern PHP ecosystems, particularly in microservices, REST APIs, and middleware stacks like those using PSR-15 (HTTP Server Request Handlers). For example, it integrates seamlessly with frameworks like Mezzio (formerly Zend Expressive) or standalone middleware libraries.