CodeIgniter 1.7电子书

CodeIgniter 1.7

Table of Contents

CodeIgniter 1.7

Credits

About the Authors

About the Reviewer

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code for the book

Errata

Piracy

Questions

1. Introduction to CodeIgniter

What can CodeIgniter do for you?

Save time

Make your site more robust

Keep your links up-to-date automatically

Preventing database SQL injection attacks and form prepping

Protect your site from XSS attacks

Make your code bolder

Send email attachments without hassles

Save bandwidth by zipping files that users need to download

What CI doesn't do

Yes, but…what is CodeIgniter? What are frameworks?

Comparing CI to other open source solutions (CakePHP and Joomla!)

What to choose

License

Summary

2. Setting up a CodeIgniter Site

Prerequisites

Installing CodeIgniter

Exploring the file structure

Does it work?—checking our CI installation

The configuration file

Autoloading libraries, helpers, and so on

Mod rewrite and apache .htaccess to achieve nice URL rewrites

Moving the application directory and the system directory—benefits

Summary

3. Navigating Your Site

MVC: Model-View-Controller

But how does all this work?

The welcome controller

Working with views

The default controller

CodeIgniter syntax rules

Controller

View

Types of files or classes on a CI site

Designing a better view

Designing a better controller

Getting parameters to a function

Passing data to a view

How CI classes pass information and control to each other

Calling views

Calling functions directly

Interacting with controllers

An example of a CI helper—the URL helper

A simple library example—creating a menu

Summary

4. Using CI to Simplify Databases

Configuration settings

Designing the database for our site

Active Record

Advantages of using the Active Record class

Saving time

Automatic functionality

Read queries

Displaying query results

Create and update queries

Delete queries

Mixing Active Record and "classic" styles

Dealing with complex queries

Summary

Chapter appendix: MySQL query to set up the website's database

5. Simplifying HTML Pages and Forms

Writing a view

Long and short PHP syntax and other CodeIgniter style guidelines

File format

PHP closing tag

Nesting views

Practical issues of site architecture

CI's form helper—entering data

Form helper advantage one: Clarity

Form helper advantage two: Automation

My display model

CI's form validation class: Checking data easily

Setting up validation

Setting up the controller

Setting up forms

Let's pack it all together

Summary

6. Simplifying Sessions and Security

Continuing with our practical site using CI

Moving around the site

Security/Sessions: Using another CI library class

Turning sessions into security

But what about logout?

Isn't there anything already built?

Security

Summary

7. CodeIgniter and Objects

Object-oriented programming

The CI super-object

Copying by reference

Adding your own code to the CI super-object

Problems with the CI super-object

Summary

8. Improving Our Application with Third-Party Code

Creating a helper

Creating a library

Sitemap

Explanation for My_Parser.php

Google charts plugin

Summary

9. Using CI to Communicate

Using the FTP class to test remote files

Machines talking to machines again: XML-RPC

Getting the XML-RPC server and client in touch with each other

Formatting XML-RPC exchanges

Debugging

Issues with XML-RPC

Talking to humans for a change—the email class

Twitter

Summary

10. How CI Helps to Provide Dynamic Information

The date helper—converting and localizing dates

The Calendar class

Working with text—the text helper

Going international—the Language class

Making HTML tables the easy way—the Table class

Caching pages

Summary

11. Using CI to Handle Files and Images

The file helper

The download helper

The file upload class and CI's image class

CI's image class

Easy file compression with CI's zip class

Summary

12. Moving Your Site to the WWW

Errors and error pages

So, should we update if a new version of CI comes out?

Steps/advice to follow when updating our CI version

Summary

13. CRUD—or Putting It All Together

Building our CRUD controller, model, and views

Upgrading our CRUD

Pagination class

Putting some order into our records

Summary

14. The Verdict on CI

Organizing the files of our site

Organizing the logic of our site

A model

A controller

A view

Centralized configuration

Code conventions

Database tools

Simpler and more powerful code

Adding security to our site

Making our site more scalable and our code more reusable

Documentation and community

Summarizing all that CI offers

Summary

15. Resources and Extensions

CI's user forums

Video tutorials

Available plugins and libraries

AJAX or JavaScript

Authentication

PDF generation

Comparisons: Which charting library to use?

HTML purifier

CRUD—the final frontier

Invoicing

Additional resources

Some books that could help

Resources for other programs: XAMPP Lite, MySQL, and PHP

Summary

A. Appendix

What we need to use the library

Adding products to the cart

Showing the cart to our clients

Summary

Index