Learn YII with Real Code Examples

Install PHP (>=8.0) and a web server (Apache/Nginx)

Run `composer create-project yiisoft/yii2-app-basic project-name`

Configure database in `config/db.php`

Run `php yii serve` to start the development server

Optional: use Yii2 Advanced Template for multi-tier applications

Install PHP 8+, Composer, and web server

Create Yii project via Composer

Configure database and environment variables

Run migrations and Gii code generation

Start development server or Docker container

config/web.php - main application config

config/console.php - console command config

config/db.php - database connection settings

composer.json - dependency management

.env - environment variables

php yii serve

php yii gii

php yii migrate

php yii cache/flush-all

php yii test

Language files in `messages/`

Templates support translations

Validation messages localized

Supports multiple locales

Community-contributed language packs

Accessible via web browser

Console commands via Yii CLI

API endpoints for programmatic access

Middleware for access control

Localization support

Views with PHP templates and widgets

Supports Bootstrap, jQuery, and frontend frameworks

Layout and theming system for consistent UI

Integration with Vue, React via extensions

Internationalization support in views

Sessions stored in files, database, or cache

Cache supports Redis, Memcached, and database

Active Record handles schema and data state

Console commands maintain job state

Events and behaviors track asynchronous actions

Active Record models manage database

Migrations version control schema

Fixtures populate test or seed data

Queue extensions handle background jobs

Cache manages temporary data efficiently