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

You can add your own config items to this file, or if you prefer to keep your configuration items separate (assuming you even need config items), simply create your own file and save it in config ...

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 ...

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 ...

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

Migrations are a convenient way for you to alter your database in a structured and organized manner. You could edit fragments of SQL by hand but you would then be responsible for telling other ...

The Language Class provides functions to retrieve language files and lines of text for purposes of internationalization. You can create or incorporate your own ...

Git is a distributed version control system. Public Git access is available at GitHub. Please note that while every effort is made to keep this code base functional ...

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 ...

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 ...

Normally the second segment of the URL is reserved for the method name, but in the example above it instead has a product ID. To overcome this, CodeIgniter allows you ...

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 ...