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

The “auto connect” feature will load and instantiate the database class with every page load. To enable “auto connecting”, add the word database to the library array, as indicated in the following ...

CodeIgniter provides a comprehensive form validation and data prepping class that helps minimize the amount of code you'll write. Before explaining CodeIgniter's approach to data validation, let's ...

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 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 Session class permits you to maintain a user’s “state” and track their activity while they browse your site. CodeIgniter comes with a few session storage drivers, that you can see in the last ...

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 ( ...

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 ...

CodeIgniter's Pagination class is very easy to use, and it is 100% customizable, either dynamically or via stored preferences. If you are not familiar with the term "pagination", it refers to links ...

Many functions previously found in the CodeIgniter 3 date_helper have been moved to the Time class in CodeIgniter 4. It is recommended to use the Time class instead. Use Time::now()->getTimestamp() to ...

The Cart Class permits items to be added to a session that stays active while a user is browsing your site. These items can be retrieved and displayed in a standard “shopping cart” format, allowing ...