Book Image

Programming with CodeIgniter MVC

Book Image

Programming with CodeIgniter MVC

Overview of this book

The CodeIgniter Model-View-Controller framework provides genius simplicity, flexibility, and efficient resource usage, boosting performance and reusability. "Programming with CodeIgniter MVC" reviews the unique features of CodeIgniter using simple, easy-to-follow, and practical examples. Programming with CodeIgniter MVC provides a simple step-by-step guide to efficiently utilizingthe CodeIgniter MVC framework for developing web applications. This book is packed with engaging examples to understand the usage of controllers, libraries, and (Codeigniter) CI Models. This book commences with a quick discussion of the CodeIgniter Integration with  external plugins such as Flickr API, Google Maps and more will be reviewed with clear usage examples. It will then cover CI naming convention rules, mandatory and optional configurations, and usage within a CI project. It will also cover user defined configurations. By the end of this book, you will not only understand user-defined libraries in a CI framework, but also their services, role, usage, and scope with the help of an example-based approach. The book also covers helpers, models, and views, as well as their usage. Using this book, youwill soonbe able to develop feature-rich web applications using the CodeIgniter MVC framework. "Programming with CodeIgniter MVC" is a one-stop solution to developing solutions with CodeIgniter MVC.
Table of Contents (15 chapters)
Programming with CodeIgniter MVC
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Appendix
Index

Chapter 5. Helpers

This chapter covers the CI helpers topic, the different types of helpers, and their different usage categories, with several code examples of web applications. CI provides us with built-in helpers, enables us to integrate third-party helpers, and enables us to develop new helpers and share them with the community if we wish to. The CI helpers are powering CI efficiency and code reusability by enabling all other CI controllers using the same code instead of defining a helper function locally.

A helper file is a collection of independent procedural functions in a particular category. Each helper function performs one specific task, with no dependence on other functions. The chapter will elaborate on the CI helper's concept, definition, and usage with several examples.

The folder system/helpers contains the CI system's built-in helpers. The folder application/helpers contains all the additional helper files of CI helpers. They can be third-party helpers or created by the developer...