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CodeIgniter 2 Cookbook

CodeIgniter 2 Cookbook

By : Robert Foster
3.8 (6)
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CodeIgniter 2 Cookbook

CodeIgniter 2 Cookbook

3.8 (6)
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)
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CodeIgniter 2 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1
Index

Sticky form elements in CodeIgniter


It is good for user experience to offer feedback; we do this in the preceding sections with validation_errors(), but it is also useful to keep user data in form elements to save them having to re-type everything, should there be an error. To do this, we need to use CodeIgniter's set_value() function.

Getting ready

Make sure that you load $this->load->helper('form'); from within the __constructor() of the controller; however, you can always autoload the helper from /path.to/codeigniter/application/config/autoload.php.

How to do it...

We're going to edit the /path/to/codeigniter/application/views/new_record.php file.

  1. Amend the file to show the following (changes in bold):

    <?php echo form_open('form/submit_form') ; ?> 
        <?php if (validation_errors()) : ?> 
            <h3>Whoops! There was an error:</h3> 
            <p><?php echo validation_errors(); ?></p> 
        <?php endif; ?> 
        <table border="0" > 
     ...
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
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CodeIgniter 2 Cookbook
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