Learn CODEIGNITER with Real Code Examples

Building a blog platform with database-backed posts

Creating an API for mobile applications

Developing an internal CRM dashboard

Implementing user authentication and role-based access

Integrating payment gateways or third-party APIs

Check `logs/` for error messages

Ensure database credentials are correct

Verify base URL and routes are properly set

Enable error reporting in development environment

Ensure autoloaded libraries/helpers are loaded correctly

Use PHPUnit for unit testing models and libraries

Test controllers using CodeIgniter’s testing helpers

Verify API endpoints with Postman or similar tools

Check routing and validation behavior

Use profiling tools to detect performance bottlenecks

Deploy on shared hosting or VPS

Dockerized CodeIgniter applications

Integrate with Nginx or Apache servers

Use environment-specific configuration files

Automate deployment with Git or CI/CD pipelines

CodeIgniter CLI tools for environment setup

Third-party libraries for authentication, REST, etc.

Community-contributed helpers and packages

Debugging and profiling tools

Unit testing framework integration

MySQL, PostgreSQL, SQLite, and other databases

REST API clients and JSON responses

Third-party libraries for email, OAuth, and payment

Template engines like Twig (optional)

CI/CD pipelines for deployment automation

Organize controllers, models, and views in modules

Use Composer for dependency management

Leverage built-in libraries and helpers

Automate repetitive tasks with CLI tools

Document reusable components for team collaboration

Scaling large applications efficiently

Integrating modern PHP practices with legacy CodeIgniter versions

Implementing advanced ORM-like features

Maintaining modularity in large codebases

Migrating older projects to CodeIgniter 4