What best describes CodeIgniter?

MCQ Question: Which of the following best describes CodeIgniter?

• A. A web framework used to build server-side web applications and APIs.
• B. It is a tool for complete unrelated domain task.
• C. It is mainly a hardware component.
• D. It is a deprecated or obsolete technology.

Correct Answer: A

Explanation: A web framework used to build server-side web applications and APIs. This topic is widely used in its domain; understanding its core purpose helps in practical application. CodeIgniter is an open-source PHP-based web application framework known for its speed, small footprint, and simplicity. It follows the MVC (Model–View–Controller) architectural pattern, which helps developers maintain clean separation between business logic, presentation, and data.

Key Characteristics of CodeIgniter

• Lightweight & Fast: Consumes minimal resources and loads quickly compared to heavier PHP frameworks.

• MVC Architecture: Provides structured development and better code maintenance.

• Built-in Libraries: Comes with helpers for sessions, forms, security, email, file uploads, and database operations.

• Easy Configuration: Requires minimal configuration, making it beginner-friendly.

• Security Features: Offers built-in protection against CSRF, XSS, and SQL injection.

• Flexible: Allows using MVC loosely; not strictly enforced.

• Excellent Documentation: One of the most praised features of CodeIgniter.

Why Other Options Are Incorrect

• Not unrelated (Option B): CodeIgniter is directly involved in the web development domain.

• Not hardware (Option C): It is purely a software framework.

• Not obsolete (Option D): While newer frameworks like Laravel dominate, CodeIgniter is still in active use and maintained.