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Yii 2 is a modern framework designed to be a solid foundation for your PHP application.

It is fast, secure and efficient and works right out of the box pre-configured with reasonable defaults.The framework is easy to adjust to meet your needs, because Yii has been designed to be flexible.

• Follow the Definitive Guidein order to get step by step instructions.

• ADefinitive Guide andaClass Reference cover every detailof the framework.
• There is aPDF version of the Definitive Guideand aDefinitive Guide Mirror which is updated every 15 minutes.
• For Yii 1.1 users, there isUpgrading from Yii 1.1to get an idea of what has changed in 2.0.

• Participate indiscussions at forums.
• Community Slack andChat in IRC.
• Follow us onFacebook,TwitterandGitHub.
• Checkother communities.

The framework isOpen Source powered byan excellent community.

You may join us and:

• Report an issue
• Translate documentation or messages
• Give us feedback or start a design discussion
• Contribute to the core code or fix bugs
• Become a sponsor

Please refer to aspecial page at the websitedescribing proper workflow for security issue reports.

build/               internally used build toolsdocs/                documentationframework/           core framework codetests/               tests of the core framework code

Acknowledging or citing Yii 2 is as important as direct contributions.

In presentations

If you are giving a presentation or talk featuring work that makes use of Yii 2 and would like to acknowledge it,we suggest usingour logo on your title slide.

In projects

If you are using Yii 2 as part of an OpenSource project, a way to acknowledge it is touse a special badge in your README:

If your code is hosted at GitHub, you can place the following in your README.md file to get the badge:

[![Yii2](https://img.shields.io/badge/Powered_by-Yii_Framework-green.svg?style=for-the-badge&logo=yii)](https://www.yiiframework.com/)

Support this project by becoming a sponsor or a backer.