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CodeIgniter 1.7
CodeIgniter 1.7

CodeIgniter 1.7: Improve your PHP coding productivity with the free compact open-source MVC CodeIgniter framework!

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CodeIgniter 1.7

Chapter 2. Setting up a CodeIgniter Site

Setting up the CI package on your web server or a local machine is easy. This chapter explains, what happens when you install the site and which files will be created. Let's look at:

  • What software you require for your site's development
  • Installing the CI files—a simple download and unzip operation
  • The basic configuration of CI—which folders are there and how they are organized
  • The initial controller and view that CI installs
  • Some basic modifications to show how these work

Prerequisites

CodeIgniter is very flexible. It will work equally well with PHP 4.3.2 and above, or PHP 5, as there are lot of hosting providers that still don't support PHP 5, this is useful. It is suggested to search for a PHP 5 hosting. CI will work in the same way. In some cases it's not possible and you will have to go with a PHP 4 hosting. You will also need a database. CI's online user guide says:

Supported databases are MySQL, MySQLi, MS SQL, Postgre SQL, Oracle, SQLite, and ODBC.

In order to develop and test a dynamic website, you need a web server. Normally, you would develop and test your site on a local server—one that runs on your own machine (with the loopback address 127.0.0.1 or localhost) rather than on a remote site on the Internet.

If you aren't familiar with the process of setting up a web server, it's easier to install a package such as XAMPP Lite or WAMP. It installs Apache, PHP, and MySQL on to a Windows machine with minimum configuration...

Installing CodeIgniter

One thing you don't need is your credit card—CI is completely free!

Once your server is set up, go to the CodeIgniter site at (http://www.codeigniter.com/) and download the latest version of the framework. Version 1.7.2, the latest, it is only 2.1 MB when zipped, so it doesn't take much time to download the framework.

Unzip the folder, and install the CodeIgniter files in your website's root folder. If you are using XAMPP Lite, this is usually the htdocs folder within the xampplite folder. For WAMP it is www inside the wamp folder.

The CodeIgniter index.php file should be in the root directory. The root folder is the folder that you would point at if you navigated to the site—in this case, by accessing http://127.0.0.1. If you put CodeIgniter in some other directory you will need to point to that directory. For example, if you create a folder called codeigniter inside your WAMP installation, you will need to put http://127.0.0.1/codeigniter...

Summary

In this chapter, we've seen how easy it is to install CI. Once you have a development web server set up, all you need to do is download the CI code, unzip it, and copy it over.

Then, we quickly looked at the structure of the files we've installed and did some basic configuration, and now we have a working CI site.

Other changes we made will help us have a site that is more secure and with better URLs. Those changes are really not necessary and you can develop your site without them, but we saw how easy it was to make them and achieve their benefits.

Now, if you haven't done it already, install your own copy of CI, remember, the most important steps are:

You...

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Key benefits

  • Clear, structured tutorial on working with CodeIgniter for rapid PHP application development
  • Careful explanation of the basic concepts of CodeIgniter and its MVC architecture
  • Use CodeIgniter with databases, HTML forms, files, images, sessions, and email
  • Full of ideas and examples with instructions making it ideal for beginners to CodeIgniter

Description

CodeIgniter (CI) is a powerful open-source PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. CodeIgniter is an MVC framework, similar in some ways to the Rails framework for Ruby, and is designed to enable, not overwhelm. This book explains how to work with CodeIgniter in a clear logical way. It is not a detailed guide to the syntax of CodeIgniter, but makes an ideal complement to the existing online CodeIgniter user guide, helping you grasp the bigger picture and bringing together many ideas to get your application development started as smoothly as possible. This book will start you from the basics, installing CodeIgniter, understanding its structure and the MVC pattern. You will also learn how to use some of the most important CodeIgniter libraries and helpers, upload it to a shared server, and take care of the most common problems. If you are new to CodeIgniter, this book will guide you from bottom to top. If you are an experienced developer or already know about CodeIgniter, here you will find ideas and code examples to compare to your own.

Who is this book for?

This book is for developers who are new to CodeIgniter. Basic skills in PHP and MySQL are required, but only rudimentary object-oriented knowledge is needed. If you're looking for a better way to develop PHP applications, or want to find out more about the CodeIgniter framework as a viable option for one of your own projects, this book will help you.

What you will learn

  • Download, install, and configure a CodeIgniter site and learn how to use mod_rewrite to generate better URLs
  • Organize a dynamic web site using the Model-View-Controller (MVC) pattern
  • Simplify your database access by integrating databases such as MySQL
  • Make your site more robust and professional by using CI s built-in classes
  • Understand the structure of a CI site and its object-oriented aspects
  • Reduce the code necessary to create a form using form helper ñ one of the fine features of CodeIgniter
  • Take any library or code, from your previous work, third-party code, etc. and put it to use inside CodeIgniter
  • Generate Create, Update, Delete, and Read (C.R.U.D) entries on each database table
  • Create multi-language sites, handle files, images, sessions, and send email easily with the help of CI
  • Work with files easily ñ upload them, download them, and put them into a Zip file
  • Test your code with error handling, unit testing, benchmarking, and profiling with the help of CI
  • Build a dynamic web site quickly and easily using CodeIgniter s prepared code
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Nov 09, 2009
Length: 300 pages
Edition : 1st
Language : English
ISBN-13 : 9781847199485
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Product Details

Publication date : Nov 09, 2009
Length: 300 pages
Edition : 1st
Language : English
ISBN-13 : 9781847199485
Languages :

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Table of Contents

17 Chapters
1. Introduction to CodeIgniter Chevron down icon Chevron up icon
2. Setting up a CodeIgniter Site Chevron down icon Chevron up icon
3. Navigating Your Site Chevron down icon Chevron up icon
4. Using CI to Simplify Databases Chevron down icon Chevron up icon
5. Simplifying HTML Pages and Forms Chevron down icon Chevron up icon
6. Simplifying Sessions and Security Chevron down icon Chevron up icon
7. CodeIgniter and Objects Chevron down icon Chevron up icon
8. Improving Our Application with Third-Party Code Chevron down icon Chevron up icon
9. Using CI to Communicate Chevron down icon Chevron up icon
10. How CI Helps to Provide Dynamic Information Chevron down icon Chevron up icon
11. Using CI to Handle Files and Images Chevron down icon Chevron up icon
12. Moving Your Site to the WWW Chevron down icon Chevron up icon
13. CRUD—or Putting It All Together Chevron down icon Chevron up icon
14. The Verdict on CI Chevron down icon Chevron up icon
15. Resources and Extensions Chevron down icon Chevron up icon
A. Appendix Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

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Full star icon Full star icon Full star icon Full star icon Half star icon 4.1
(7 Ratings)
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4 star 42.9%
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2 star 14.3%
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Manuel Ambulo Mar 22, 2015
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Good tutorial
Amazon Verified review Amazon
prolificreviewer713 Apr 04, 2010
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is a great reference book not only to read while away from your computer but also to keep next to the keyboard as you are developing. I typically do not read these types of books cover to cover but being new to the whole MVC concept had me reading most of the book page by page. The MVC design principals discussed are balanced in the fact that they show you why the MVC design is better then most ad-hoc systems. The Active Record class implementation should be reason enough to use the framework on any PHP site that uses CRUD (Create, Read, Update, Delete) / databases in general.The sometimes confusing part of my title comes in to play when skimming over the book, it seems like they reference things a few pages back which means you have to backtrack to understand where the example or corresponding part is at (if you read page to page this will probably not be a problem). Overall a highly recommended framework and book!
Amazon Verified review Amazon
The Reader Jan 07, 2010
Full star icon Full star icon Full star icon Full star icon Full star icon 5
An excellent guide to the CodeIgniter framework. While the online documentation for the framework is excellent, this book reduces the learning curve considerably.
Amazon Verified review Amazon
HappyChickenLogistics Mar 20, 2010
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
I bought this mainly because I found myself away from the computer often but I still wanted to learn how to use the framework when I couldn't use the computer.The writing is well done and I think this is a great resource for anyone who is somewhat new to Codeigniter, PHP, or MVC (or at least Codeigniter's version of it). While a lot of the information contained within can be easily obtained online, this book does a great job of explaining things clearly and providing nice examples and walkthroughs.If you are a more advanced user then this book might not be for you. Once you start delving into some of the more advanced portions of Codeigniter you will quickly find yourself searching for more answers online, although it is hard to fault this book for not covering everything.Overall a nice resource to have.
Amazon Verified review Amazon
Konstantin Nov 01, 2010
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
I highly recommend this book. its a great resource to get you started with CI. Yes there are typos, but the knowledge you get from this book is so great, you yourself will see all the typos. I recommend it !
Amazon Verified review Amazon
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