Please refer to the upgrade instructions corresponding to your installation method.

The Database Utility Class contains methods that help you manage your database.

The following page contains example code showing how the database class is used. For complete details please read the individual pages describing each function. Note CodeIgniter doesn’t support dots ( ...

The HTML Helper file contains functions that assist in working with HTML.

The IncomingRequest class provides an object-oriented representation of an HTTP request from a client, like a browser. It extends from, and has access to all the methods of the Request and Message ...

The Form Helper file contains functions that assist in working with forms.

CodeIgniter’s Pagination class is very easy to use, and it is 100% customizable, either dynamically or via stored preferences.

Please read the upgrade notes corresponding to the version you are upgrading from.

The Encryption Library provides two-way data encryption. To do so in a cryptographically secure way, it utilizes PHP extensions that are unfortunately not always available on all systems. You must ...

Helpers, as the name suggests, help you with tasks. Each helper file is simply a collection of functions in a particular category. There are URL Helpers, that assist in creating links, there are Form ...

The CodeIgniter’s Model provides convenience features and additional functionality that people commonly use to make working with a single table in your database more convenient. It comes out of the ...