CodeIgniter 2 Cookbook

Chapter 5. Managing Data In and Out

In this chapter, we will cover:

• Sending different data to multiple views
• Validating user input
• Preparing user input
• Sticky form elements in CodeIgniter
• Displaying errors next to form items
• Reading files from the filesystem
• Writing files to the filesystem
• Creating and downloading ZIP files
• Uploading files with CodeIgniter
• Creating and using validation callbacks
• Using the language class
• Using the language class – switching a language on the fly
• Confirming cookie acceptance from the user

Introduction

Managing data is an important subject covering not only the format of output data, database structure, and access methods but also security; any discussion of data and managing that data will obviously feature discussions of security ...