mezzio / mezzio
PSR-15 Middleware Microframework
Requires
- php: ~8.2.0 || ~8.3.0 || ~8.4.0 || ~8.5.0
- fig/http-message-util: ^1.1.5
- laminas/laminas-httphandlerrunner: ^2.1
- laminas/laminas-stratigility: ^4.3
- mezzio/mezzio-router: ^3.15.0 || ^4.0.0
- mezzio/mezzio-template: ^2.2 || ^3.0
- psr/container: ^1.0||^2.0
- psr/http-factory: ^1.0
- psr/http-message: ^1.0.1 || ^2.0.0
- psr/http-server-middleware: ^1.0
- webmozart/assert: ^1.11.0 || ^2.0.0
Requires (Dev)
- filp/whoops: ^2.18.4
- laminas/laminas-coding-standard: ^3.1.0
- laminas/laminas-diactoros: ^3.8.0
- laminas/laminas-servicemanager: ^3.24.0
- mezzio/mezzio-fastroute: ^3.14
- mezzio/mezzio-laminasrouter: ^3.12
- phpunit/phpunit: ^11.5.44
- psalm/plugin-phpunit: ^0.19.5
- vimeo/psalm: ^6.13.1
Suggests
- filp/whoops: ^2.1 to use the Whoops error handler
- laminas/laminas-auradi-config: ^2.0 to use Aura.Di dependency injection container
- laminas/laminas-pimple-config: ^1.0 to use Pimple for dependency injection container
- laminas/laminas-servicemanager: ^3.3 to use laminas-servicemanager for dependency injection
- mezzio/mezzio-helpers: ^3.0 for its UrlHelper, ServerUrlHelper, and BodyParseMiddleware
- mezzio/mezzio-tooling: ^1.0 for migration and development tools; require it with the --dev flag
- psr/http-message-implementation: Please install a psr/http-message-implementation to consume Mezzio; e.g., laminas/laminas-diactoros
Provides
None
Conflicts
- container-interop/container-interop: <1.2.0
- filp/whoops: <2.14.4
- laminas/laminas-diactoros: <1.7.1
- laminas/laminas-http: <2.15.0
- laminas/laminas-router: <3.5.0
- laminas/laminas-stdlib: <3.6.0
- zendframework/zend-expressive: *
Replaces
None
This package is auto-updated.
Last update: 2026-09-07 05:45:58 UTC
README
Develop PSR-7 middleware applications in minutes!
mezzio builds on laminas-stratigility to provide a minimalist PSR-7 middleware framework for PHP, with the following features:
- Routing. Choose your own router; we support:
- DI Containers, via PSR-11 Container. Middleware matched via routing is retrieved from the composed container.
- Optionally, templating. We support:
Installation
We provide two ways to install Mezzio, both using Composer: via our skeleton project and installer, or manually.
Using the skeleton + installer
The simplest way to install and get started is using the skeleton project, which includes installer scripts for choosing a router, dependency injection container, and optionally a template renderer and/or error handler. The skeleton also provides configuration for officially supported dependencies.
To use the skeleton, use Composer's create-project command:
composer create-project mezzio/mezzio-skeleton <project dir>
This will prompt you through choosing your dependencies, and then create and
install the project in the <project dir> (omitting the <project dir> will
create and install in a mezzio-skeleton/ directory).
Manual Composer installation
You can install Mezzio standalone using Composer:
composer require mezzio/mezzio
However, at this point, Mezzio is not usable, as you need to supply minimally:
- a router.
- a dependency injection container.
We currently support and provide the following routing integrations:
- FastRoute:
composer require mezzio/mezzio-fastroute - laminas-router:
composer require mezzio/mezzio-laminasrouter
We recommend using a dependency injection container, and typehint against PSR-11 Container. We can recommend the following implementations:
- laminas-servicemanager:
composer require laminas/laminas-servicemanager - Pimple (see docs for more details):
composer require laminas/laminas-pimple-config - Aura.Di (see docs for more details):
composer require laminas/laminas-auradi-config
Additionally, you may optionally want to install a template renderer implementation, and/or an error handling integration. These are covered in the documentation.
Documentation
Documentation is in the doc tree, and can be compiled using mkdocs:
mkdocs build
Additionally, public-facing, browseable documentation is available at https://docs.mezzio.dev/mezzio/