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Mezzio

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description Mezzio Overview

Mezzio is a PHP framework for developing web applications and APIs around middleware conforming to the PSR-15 standard. Maintained within the Laminas ecosystem, it uses interoperable PHP interfaces and lets developers assemble routing, dependency injection, request handling, and error handling from separate components. It is intended for teams that prefer a modular middleware architecture rather than a tightly integrated full-stack framework.

help Mezzio FAQ

Is Mezzio the same as Zend Expressive?

Yes, Mezzio is the renamed continuation of Zend Expressive. The rename occurred when the Zend Framework project transitioned to the Laminas Project after Zend's parent company donated the framework to the Linux Foundation.

What PSR standard is Mezzio built around?

Mezzio is built around the PSR-15 standard, which defines interfaces for HTTP server request handlers and middleware components. This allows developers to use any PSR-15-compatible middleware from the broader PHP ecosystem.

How does Mezzio compare to Laravel?

Mezzio is a micro-framework focused on middleware pipelines, giving developers freedom to choose their own router, template engine, and dependency injection container. Laravel, by contrast, is a full-stack framework with built-in ORM (Eloquent), templating (Blade), authentication, and other features included by default.

What template engines can I use with Mezzio?

Mezzio supports multiple template rendering engines through its templating component, including Twig, Plates, and Laminas View. Developers select their preferred renderer during project scaffolding or can write a custom adapter for other engines.

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