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Table Of Contents
Programming with CodeIgniter MVC
This chapter covers the basics of the CI development framework and its usage by reviewing some fundamental web application examples. We will start with a basic hello world example and move to an interactive contact-form integration with a database. We will construct the CI applications by following a step-by-step method. Throughout this chapter, we need to remember that the CI development framework is an MVC-based development architecture (for more information, refer to the Wikipedia definition at http://en.wikipedia.org/wiki/Model-view-controller).
This chapter will primarily focus on the following topics:
The CI project directory tree framework
Configurations (routing and autoloading are covered in this chapter, while the other issues are covered in Chapter 2, Configurations and Naming Conventions)
Example 1: hello world
Example 2: passing parameters to a view
Example 3: the database query by a model rendering results to a view
Example 4: interactive contact forms
By reviewing these examples, we will get the basics of using CI resources. We will begin by briefly reviewing the CI resources used. Then we will review a web application code that loads a static view page. Next we will use the model to retrieve data from a database and show it in a view. Finally, we'll add a view with a contact form to enter input and save it by calling a controller method into the database.
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