Design and Architecture of Codeigniter

CodeIgniter is a popular PHP web application framework that focuses on simplicity, flexibility, and performance. Its design and architecture goals are aimed at achieving these objectives. CodeIgniter follows the Model-View-Controller (MVC) architectural pattern, which separates the application logic into three interconnected components: Model, View, and Controller. This architecture promotes separation of concerns, making the codebase easier to maintain, test, and modify.

CodeIgniter follows the Model-View-Controller (MVC) architecture, which separates an application into three interconnected parts – Model, View, and Controller. This design pattern helps to make the code more organized, maintainable, and reusable.

CodeIgniter follows the Front Controller pattern, which means that all requests are routed through a single entry point called the index.php file. The index.php file loads the necessary files and libraries, initializes the application, and routes the request to the appropriate Controller.

CodeIgniter comes with a set of pre-built libraries and helpers that help developers to perform common tasks quickly and easily. Libraries are pre-built classes that can be loaded and used within the application, while Helpers are sets of utility functions that can be used anywhere in the code.

CodeIgniter has built-in security features that help to protect the application from common security threats such as SQL injection and cross-site scripting (XSS). It provides input filtering, output escaping, and encryption libraries to help developers write secure code.

In conclusion, CodeIgniter follows a well-designed architecture that promotes modularity, maintainability, and reusability. Its simplicity and flexibility make it a popular choice among developers for building web applications.