codeigniter_tutorial

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CodeIgniter About the Tutorial CodeIgniter is a powerful PHP framework with a very small footprint, built for developers who need a simple and elegant toolkit to create full-featured web applications. CodeIgniter was created by EllisLab, and is now a project of the British Columbia Institute of Technology. Audience This tutorial has been prepared for developers who would like to learn the art of developing websites using CodeIgniter. It provides a complete understanding of this framework. Prerequisites Before you start proceeding with this tutorial, we assume that you are already exposed to HTML, Core PHP, and Advance PHP. We have used CodeIgniter version 3.0.1 in all the examples. Copyright & Disclaimer Copyright 2015 by Tutorials Point (I) Pvt. Ltd. All the content and graphics published in this e-book are the property of Tutorials Point (I) Pvt. Ltd. The user of this e-book is prohibited to reuse, retain, copy, distribute or republish any contents or a part of contents of this e-book in any manner without written consent of the publisher. We strive to update the contents of our website and tutorials as timely and as precisely as possible, however, the contents may contain inaccuracies or errors. Tutorials Point (I) Pvt. Ltd. provides no guarantee regarding the accuracy, timeliness or completeness of our website or its contents including this tutorial. If you discover any errors on our website or in this tutorial, please notify us at contact@tutorialspoint.com i
CodeIgniter Table of Contents About the Tutorial .................................................................................................................................... i Audience .................................................................................................................................................. i Prerequisites ............................................................................................................................................ i Copyright & Disclaimer ............................................................................................................................. i Table of Contents .................................................................................................................................... ii 1. CODEIGNITER – OVERVIEW ................................................................................................. 1 2. INSTALLING CODEIGNITER ................................................................................................... 3 3. APPLICATION ARCHITECTURE .............................................................................................. 4 Directory Structure.................................................................................................................................. 5 4. CODEIGNITER – MVC FRAMEWORK ..................................................................................... 8 5. CODEIGNITER – BASIC CONCEPTS ........................................................................................ 9 Controllers .............................................................................................................................................. 9 Views .................................................................................................................................................... 11 Models .................................................................................................................................................. 13 Helpers .................................................................................................................................................. 15 Routing ................................................................................................................................................. 16 6. CODEIGNITER – CONFIGURATION ..................................................................................... 19 Configuring Base URL ............................................................................................................................ 19 Database Configuration......................................................................................................................... 19 Autoload Configuration ......................................................................................................................... 21 7. WORKING WITH DATABASE ............................................................................................... 23 Connecting to a Database ..................................................................................................................... 23 Inserting a Record ................................................................................................................................. 23 ii
Page 4 and 5: CodeIgniter Updating a Record .....
Page 6 and 7: 1. CodeIgniter - Overview CodeIgnit
Page 8 and 9: 2. Installing CodeIgniter CodeIgnit
Page 10 and 11: CodeIgniter Directory Structure The
Page 12 and 13: CodeIgniter and classes. It is reco
Page 14 and 15: 5. CodeIgniter - Basic Concepts Cod
Page 16 and 17: CodeIgniter Visiting the third URI
Page 18 and 19: CodeIgniter The following flowchart
Page 20 and 21: CodeIgniter As shown in the above f
Page 22 and 23: CodeIgniter Reserved Routes $route[
Page 24 and 25: 6. CodeIgniter - Configuration Code
Page 26 and 27: CodeIgniter ); You can simply switc
Page 28 and 29: 7. Working with Database CodeIgnite
Page 30 and 31: CodeIgniter Finally, the update() f
Page 32 and 33: CodeIgniter function __construct(){
Page 34 and 35: CodeIgniter parent::__construct();
Page 36 and 37: CodeIgniter echo form_close(); ?>
Page 38 and 39: 8. CodeIgniter - Libraries CodeIgni
Page 40 and 41: CodeIgniter Create New Library Whil
Page 42 and 43: 9. Error 9. Handling CodeIgniter Ma
Page 44 and 45: 10. File Uploading CodeIgniter Usin
Page 46 and 47: CodeIgniter if ( ! $this->upload->d
Page 48 and 49: 11. Sending Email CodeIgniter Sendi
Page 50 and 51: CodeIgniter Syntax Parameters Retur
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CodeIgniter $this->email->subject('
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12. Form Validation CodeIgniter Val
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CodeIgniter } } Add the following l
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CodeIgniter less_than less_than_equ
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13. Session Management CodeIgniter
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CodeIgniter $this->load->library('s
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CodeIgniter //redirect to home page
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15. Tempdata CodeIgniter In some si
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CodeIgniter Click Here to add temp
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16. Cookie Management CodeIgniter C
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CodeIgniter } public function delet
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CodeIgniter Syntax html_escape($var
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18. Page Caching CodeIgniter Cachin
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19. Page Redirection CodeIgniter Wh
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20. Application Profiling CodeIgnit
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21. Benchmarking CodeIgniter Settin
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CodeIgniter The above URL will enab
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CodeIgniter public function index()
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23. Internationalization CodeIgnite
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CodeIgniter //Load the view file $t
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CodeIgniter Copy the below given co
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CodeIgniter $this->db->query($sql,
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