Book Image

CodeIgniter 2 Cookbook

By : Robert Foster
Book Image

CodeIgniter 2 Cookbook

By: Robert Foster

Overview of this book

As a developer, there are going to be times when you'll need a quick and easy solution to a coding problem. CodeIgniter is a powerful open source PHP framework which allows you to build simple yet powerful full-feature web applications. CodeIgniter 2 Cookbook will give you quick access to practical recipes and useful code snippets which you can add directly into your CodeIgniter application to get the job done. It contains over 80 ready-to-use recipes that you can quickly refer to within your CodeIgniter application or project.This book is your complete guide to creating fully functioning PHP web applications, full of easy-to-follow recipes that will aid you in any aspect of developing with CodeIgniter. CodeIgniter 2 Cookbook takes you from the basics of CodeIgniter, through e-commerce features for your applications, and ends by helping you ensure that your environment is secure for your users and SEO friendly to draw in customers. Starting with installation and setup, CodeIgniter 2 Cookbook provides quick solutions to programming problems that you can directly include in your own projects. You will be moving through databases, EU Cookie Law, caching, and everything else in-between with useful, ready-to-go recipes. You will look at image manipulation using the Image Manipulation library, user management (building a simple CRUD interface), switching languages on the fly according to the user preference, caching content to reduce server load, and much more.
Table of Contents (18 chapters)
CodeIgniter 2 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Using CodeIgniter database migrations


Imagine that you work in a team of other developers, and everyone is busy working, making changes to the code and the database structure. Keeping up with all of those changes to a database can become a challenge, particularly if many people are working on roughly the same area of the project.

CodeIgniter Migration gives you the option to install (or rollback) the changes of a database structure that might support the changes in the code. For example, if you were working on coding changes for, say, a user registration script—this change requires a column to be added to a database table; you could include a CodeIgniter database migration script with your version control commit (assuming you're using version control)—other developers will now know that for your code change to work they must run the migration which would amend their database.

Migration also allows you to roll back changes. This should not be confused with the database concept of rolling back...