Yii PHP Framework Version 2

Thank you for choosing Yii 2 - a modern PHP framework designed for professional Web development.

Yii 2 is a complete rewrite of its previous version Yii 1.1 which is one of the most popular PHP frameworks. Yii 2 inherits the main spirit behind Yii for being simple, fast and highly extensible. Yii 2 requires PHP 5.4 and embraces the best practices and protocols found in modern Web application development.

DIRECTORY STRUCTURE

build/               internally used build tools
docs/                documentation
framework/           core framework code
tests/               tests of the core framework code

REQUIREMENTS

The minimum requirement by Yii is that your Web server supports PHP 5.4.

DOCUMENTATION

Yii 2.0 has a Definitive Guide and a Class Reference which cover every detail of Yii.

There is also a PDF version of the Definitive Guide and a Definitive Guide Mirror which is updated every 15 minutes.

For 1.1 users, you may refer to Upgrading from Yii 1.1 to have a general idea of what has changed in 2.0.

HOW TO PARTICIPATE

Your participation to Yii 2 development is very welcome!

You may participate in the following ways:

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

Acknowledging or citing Yii 2

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 using our 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 to use 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=flat)](http://www.yiiframework.com/)