CodeIgniter’s Hooks feature provides a means to tap into and modify the inner workings of the framework without hacking the core files. When CodeIgniter runs it follows a specific execution process, ...

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.

Note: Query string URLs can be optionally enabled, as described below.

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 ...

An upload form is displayed, allowing a user to select a file and upload it. When the form is submitted, the file is uploaded to the destination you specify. Along the way, the file is validated to ...

CodeIgniter has a config file that lets you store your database connection values (username, password, database name, etc.). The config file is located at application ...

The User Agent Class provides functions that help identify information about the browser, mobile device, or robot visiting your site. In addition you can get referrer information as well as language ...

CodeIgniter features wrappers around some of the most popular forms of fast and dynamic caching. All but file-based caching require specific server requirements, and a Fatal Exception will be thrown ...

CodeIgniter uses a few functions for its operation that are globally defined, and are available to you at any point. These do not require loading any libraries or helpers. is_writable() returns TRUE ...

It pre-processes global input data for security. It provides some helper methods for fetching input data and pre-processing it.