PHPackages o2system/psr - PHPackages - PHPackages [Skip to content](#main-content)[PHPackages](/)[Directory](/)[Categories](/categories)[Trending](/trending)[Leaderboard](/leaderboard)[Changelog](/changelog)[Analyze](/analyze)[Collections](/collections)[Log in](/login)[Sign up](/register) 1. [Directory](/) 2. / 3. [Framework](/categories/framework) 4. / 5. o2system/psr ActivePackage[Framework](/categories/framework) o2system/psr ============ O2System PSR it's build based on PHP Framework Interop Group (PHP-FIG) standards recommendations. This repository contains a collection of PHP interfaces based on the PSR-0 until the PSR-7. v1.2.170(6y ago)220.6k↓81%1MITPHPPHP ^7.2.0 Since Aug 10Pushed 5y ago3 watchersCompare [ Source](https://github.com/o2system/psr)[ Packagist](https://packagist.org/packages/o2system/psr)[ RSS](/packages/o2system-psr/feed)WikiDiscussions master Synced yesterday READMEChangelog (10)Dependencies (6)Versions (17)Used By (1) [![alt text](https://repository-images.githubusercontent.com/67685587/52174180-5ca0-11ea-8f56-670a28e28481 "O2System PSR Atom")](https://repository-images.githubusercontent.com/67685587/52174180-5ca0-11ea-8f56-670a28e28481) [![Scrutinizer Code Quality](https://camo.githubusercontent.com/84cb3de9b7e7ec22ba7380d281ec6c583ac8beeae3f23136506a333b41b5f94d/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f6f3273797374656d2f7073722f6261646765732f7175616c6974792d73636f72652e706e673f623d6d6173746572)](https://scrutinizer-ci.com/g/o2system/psr/?branch=master)[![Build Status](https://camo.githubusercontent.com/39ecc612c99579cc8cd9662c0737ff442a12e3acdc094430ac576c4a008e7f7e/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f6f3273797374656d2f7073722f6261646765732f6275696c642e706e673f623d6d6173746572)](https://scrutinizer-ci.com/g/o2system/psr/build-status/master)[![PHP Composer](https://github.com/o2system/psr/workflows/PHP%20Composer/badge.svg)](https://github.com/o2system/psr/workflows/PHP%20Composer/badge.svg)[![Latest Stable Version](https://camo.githubusercontent.com/f8dbb2eeaf2b6ba32010319b3f1519c034ef84cc99608c13da6a6c2a9310b165/68747470733a2f2f706f7365722e707567782e6f72672f6f3273797374656d2f7073722f762f737461626c65)](https://packagist.org/packages/o2system/psr)[![Total Downloads](https://camo.githubusercontent.com/387f1c05fd2df83457402c345db35f154d4349b9e0ac6a987d394e2f8baf2fae/68747470733a2f2f706f7365722e707567782e6f72672f6f3273797374656d2f7073722f646f776e6c6f616473)](https://packagist.org/packages/o2system/psr)[![License](https://camo.githubusercontent.com/ef26d453856fb92354db606f8396d5d7c92efbda59a9b834f49da9a753c0cb87/68747470733a2f2f706f7365722e707567782e6f72672f6f3273797374656d2f7073722f6c6963656e7365)](https://packagist.org/packages/o2system/psr) O2System PHP Standards Recommendations (PSR) ============================================ [](#o2system-php-standards-recommendations-psr) O2System PSR was build based on [PHP Framework Interop Group (PHP-FIG)](http://php-fig.org) standards recommendations and it is edited and added by some standards recommendations for O2System PHP Framework. This repository contains a collection of PHP classes, abstract classes and interfaces classes based on the PSR-3, PSR-4, PSR-6 and PSR-7. BasedTitle PSR-3Logger InterfacePSR-4Autoloading StandardPSR-6Caching InterfacePSR-7HTTP Message InterfacePSR-11Container InterfacePSR-15HTTP Server Request HandlersPSR-16Common Interface for Caching Libraries### PHP Pattern Classes [](#php-pattern-classes) - Parent-Child Pattern Class - Data Storage Pattern Class - Factory-Prototype Pattern Class - Handler Pattern Class - Item Storage Pattern Class - Object Container Pattern Class - Object Registry Pattern Class - Observer Pattern Class - Singleton Pattern Class - Subject Pattern Class - Variable Storage Pattern Class ### Composer Installation [](#composer-installation) The best way to install O2System Psr is to use [Composer](https://getcomposer.org) ``` composer require o2system/psr ``` > Packagist: ### Usage [](#usage) Documentation is available on this repository [wiki](https://github.com/o2system/psr/wiki) or visit this repository [github page](https://o2system.github.io/psr). ### Ideas and Suggestions [](#ideas-and-suggestions) Please kindly mail us at [o2system.framework@gmail.com](mailto:o2system.framework@gmail.com%5D) ### Bugs and Issues [](#bugs-and-issues) Please kindly submit your [issues at Github](http://github.com/o2system/psr/issues) so we can track all the issues along development and send a [pull request](http://github.com/o2system/psr/pulls) to this repository. ### System Requirements [](#system-requirements) - PHP 7.2+ - [Composer](https://getcomposer.org) ### Health Score 35 — LowBetter than 77% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity26 Limited adoption so far Community15 Small or concentrated contributor base Maturity66 Established project with proven stability Bus Factor1 Top contributor holds 83.8% 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 ~68 days Recently: every ~120 days Total 16 Last Release 2221d ago PHP version history (3 changes)v1.0.0PHP >=5.6.0 v1.2.152PHP ~7.2.0 v1.2.153PHP ^7.2.0 ### Community Maintainers ![](https://www.gravatar.com/avatar/e2ac781bdba53fdce5ac7a9f090a4afd42b18766646036370661ffefde7811de?d=identicon)[steevenz](/maintainers/steevenz) ![](https://www.gravatar.com/avatar/ccce1c77fabdaf8734f54c6b1a82324c4ad1278a62910c7cab0b5b15d941cf7b?d=identicon)[o2system](/maintainers/o2system) --- Top Contributors [![steevenz](https://avatars.githubusercontent.com/u/218405?v=4)](https://github.com/steevenz "steevenz (31 commits)")[![turahe](https://avatars.githubusercontent.com/u/6832622?v=4)](https://github.com/turahe "turahe (5 commits)")[![o2system-codeworks](https://avatars.githubusercontent.com/u/293292195?v=4)](https://github.com/o2system-codeworks "o2system-codeworks (1 commits)") --- Tags phpframeworkinterfacesutilitieslibraries ### Embed Badge ![Health badge](/badges/o2system-psr/health.svg) ``` [![Health](https://phpackages.com/badges/o2system-psr/health.svg)](https://phpackages.com/packages/o2system-psr) ``` ### Alternatives [symfony/symfony The Symfony PHP framework 31.4k87.2M2.2k](/packages/symfony-symfony)[tempest/framework The PHP framework that gets out of your way. 2.2k34.4k15](/packages/tempest-framework)[cakephp/cakephp The CakePHP framework 8.9k19.5M1.8k](/packages/cakephp-cakephp)[laravel/framework The Laravel Framework. 34.8k543.8M20.1k](/packages/laravel-framework)[shopware/platform The Shopware e-commerce core 3.4k1.5M3](/packages/shopware-platform)[shopware/core Shopware platform is the core for all Shopware ecommerce products. 585.6M574](/packages/shopware-core) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)