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

The following page contains example code showing how the database class is used. For complete details please read the individual pages describing each function.

CodeIgniter gives you access to a Query Builder class. This pattern allows information to be retrieved, inserted, and updated in your database with minimal scripting. In some cases only one or two ...

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 ...

BCC Batch Mode, enabling large email lists to be broken into small BCC batches. Sending email is not only simple, but you can configure it on the fly or set your preferences in the ...

In addition, you may create your own, custom session drivers based on other kinds of storage, while still taking advantage of the features of the Session class. Sessions will typically run globally ...

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 ...

Sending email is not only simple, but you can configure it on the fly or set your preferences in a config file. Here is a basic example demonstrating how you might send email. Note: This example ...

CodeIgniter provides a library to help you with certain common functions that you may want to use with Javascript. Please note that CodeIgniter does not require the jQuery library to run, and that any ...

CodeIgniter provides a few functions and variables that are globally defined, and are available to you at any point. These do not require loading any additional libraries or helpers.

Watermarking is only available using the GD/GD2 library. In addition, even though other libraries are supported, GD is required in order for the script to calculate the image properties. The image ...

If you would like to share a common CodeIgniter framework installation, to manage several different applications, simply put all of the directories located inside your application directory into their ...