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journey/fermi
=============

A nuclear-sized PSR-7 and PSR-15 compliant PHP framework.

2.0.0(7y ago)3231MITPHPPHP >=7.1

Since Jan 10Pushed 7y ago2 watchersCompare

[ Source](https://github.com/journeygroup/fermi)[ Packagist](https://packagist.org/packages/journey/fermi)[ Docs](http://github.com/journeygroup/fermi)[ RSS](/packages/journey-fermi/feed)WikiDiscussions master Synced 2mo ago

READMEChangelog (1)Dependencies (8)Versions (7)Used By (0)

About the Fermi Framework
-------------------------

[](#about-the-fermi-framework)

[![Build Status](https://camo.githubusercontent.com/5c36062afbb92a4eef6a6ee134af7d09b1a025620d8a483312f8672a4145902a/68747470733a2f2f7472617669732d63692e6f72672f6a6f75726e657967726f75702f6665726d692e7376673f6272616e63683d6d6173746572)](https://travis-ci.org/journeygroup/fermi)[![Scrutinizer Code Quality](https://camo.githubusercontent.com/a49c3b0521da2a375b921edd31e7338fea8afb669f2a96f554487a523ae4b973/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f6a6f75726e657967726f75702f6665726d692f6261646765732f7175616c6974792d73636f72652e706e673f623d6d6173746572)](https://scrutinizer-ci.com/g/journeygroup/fermi/?branch=master)[![Code Coverage](https://camo.githubusercontent.com/a7c870435f3be60659382060532d93ba9e771d3be6b995c67a15ba52c2156931/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f6a6f75726e657967726f75702f6665726d692f6261646765732f636f7665726167652e706e673f623d6d6173746572)](https://scrutinizer-ci.com/g/journeygroup/fermi/?branch=master)[![Latest Stable Version](https://camo.githubusercontent.com/1aa1f8fae69e8c27dca706489f862b6c6e02e72256c1e7b4ab6ba9963f880c73/68747470733a2f2f706f7365722e707567782e6f72672f6a6f75726e65792f6665726d692f762f737461626c65)](https://packagist.org/packages/journey/fermi)[![License](https://camo.githubusercontent.com/75ea4240f4975ccd8d8680cc1e5cc6e15a57b0ce7480b1d344e9e2482f0007b6/68747470733a2f2f706f7365722e707567782e6f72672f6a6f75726e65792f6665726d692f6c6963656e7365)](https://packagist.org/packages/journey/fermi)

Fermi is a [nuclear-sized](https://en.wikipedia.org/wiki/Femtometre) PSR-7 and PSR-15 compliant PHP framework. Its goal is to be small and transparent so that novice developers can fully comprehend how it works, but powerful and extensible so that expert developers can get real value from it.

Sure but why?
-------------

[](#sure-but-why)

Fermi differs substantially from other PHP frameworks:

- It contains very little original code. In fact, you could think of it as a curated collection of excellent packages.
- B.Y.O.C. (bring your own container)... [or don’t](https://www.tonymarston.net/php-mysql/dependency-injection-is-evil.html).
- Hacking core is encouraged.

That last point probably made you 😳. Fermi core is a collection of stateless static methods that sits right alongside your project rather than hidden in the `vendor` directory. The framework is intended to serve more like scaffolding than an external dependency. Thanks to the great work of [PHP-FIG](http://www.php-fig.org/), we can rely on compliant packages instead of designing a new wheel.

Installation
------------

[](#installation)

To create a new Fermi project, use Composer’s `create-project` command:

```
composer create-project journey/fermi your-new-app
```

You can then point an Apache virtual host to the public directory, or run Fermi with PHP’s built-in server:

```
php -S 127.0.0.1:8080 -t public public/index.php
```

Base package selection
----------------------

[](#base-package-selection)

Fermi uses the following excellent open-source packages by default:

FunctionPackageMessages[zendframework/zend-diactoros](https://github.com/zendframework/zend-diactoros)Middleware Dispatcher[mindplay/middleman](https://github.com/mindplay-dk/middleman)Router[nikic/fast-route](https://github.com/nikic/FastRoute)Templating[league/plates](https://github.com/thephpleague/plates)Feel free to swap these out with any of your own packages.

License
-------

[](#license)

The Fermi framework is open-source software licensed under the [MIT license](http://opensource.org/licenses/MIT).

###  Health Score

29

—

LowBetter than 59% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity11

Limited adoption so far

Community12

Small or concentrated contributor base

Maturity62

Established project with proven stability

 Bus Factor1

Top contributor holds 54.2% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~168 days

Recently: every ~210 days

Total

6

Last Release

2570d ago

Major Versions

1.2.0 → 2.0.02019-05-02

PHP version history (3 changes)1.0.0PHP >=5.6.0

1.2.0PHP ^7.1

2.0.0PHP >=7.1

### Community

Maintainers

![](https://www.gravatar.com/avatar/db85c379f90173f437183b21df031e20997aaac69c7046fd927c2a3b57663d39?d=identicon)[justin-schroeder](/maintainers/justin-schroeder)

---

Top Contributors

[![justin-schroeder](https://avatars.githubusercontent.com/u/1950463?v=4)](https://github.com/justin-schroeder "justin-schroeder (13 commits)")[![joshuabryant](https://avatars.githubusercontent.com/u/1486061?v=4)](https://github.com/joshuabryant "joshuabryant (6 commits)")[![Zegnat](https://avatars.githubusercontent.com/u/490579?v=4)](https://github.com/Zegnat "Zegnat (5 commits)")

---

Tags

framework

### Embed Badge

![Health badge](/badges/journey-fermi/health.svg)

```
[![Health](https://phpackages.com/badges/journey-fermi/health.svg)](https://phpackages.com/packages/journey-fermi)
```

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