yiisoft/yii2

Yii 2 is a PHP framework designed to provide a solid, fast, and secure foundation for web applications.

The framework addresses the need for a pre-configured yet flexible PHP development environment. It ships with reasonable defaults that allow developers to start building immediately without extensive setup, while remaining customizable to accommodate specific project requirements. The framework emphasizes efficiency and security as core design principles, enabling developers to write robust applications with minimal configuration overhead.

Yii 2 suits teams building traditional server-side PHP applications who value a structured, opinionated framework with comprehensive documentation. The framework works best with PHP 8 and requires a minimum of PHP 7.4. It is particularly appropriate for projects where developers want conventions and sensible defaults rather than building from scratch, and where the extensive Definitive Guide and Class Reference documentation are valuable resources. The README does not position the tool against specific alternatives, so no comparative claims can be made.

The project maintains active community engagement through forums, Slack, and IRC channels, with documented workflows for reporting issues, contributing code, and translating documentation. Security vulnerabilities are handled through a dedicated process separate from public issue tracking. The framework has established guidelines for contributors interested in fixing bugs or extending the core codebase.