codeigniter_tutorial

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CodeIgniter Directory Structure The image given below shows the directory structure of the CodeIgniter. Figure: Directory Structure CodeIgniter directory structure is divided into 3 folders: Application System User_guide Application As the name indicates the Application folder contains all the code of your application that you are building. This is the folder where you will develop your project. The Application folder contains several other folders, which are explained below: Cache: This folder contains all the cached pages of your application. These cached pages will increase the overall speed of accessing the pages. Config: This folder contains various files to configure the application. With the help of config.php file, user can configure the application. Using database.php file, user can configure the database of the application. Controllers: This folder holds the controllers of your application. It is the basic part of your application. Core: This folder will contain base class of your application. Helpers: In this folder, you can put helper class of your application. 5
CodeIgniter Hooks: The files in this folder provide a means to tap into and modify the inner workings of the framework without hacking the core files. Language: This folder contains language related files. Libraries: This folder contains files of the libraries developed for your application. Logs: This folder contains files related to the log of the system. Models: The database login will be placed in this folder. Third_party: In this folder, you can place any plugins, which will be used for your application. Views: Application’s HTML files will be placed in this folder. System This folder contains CodeIgniter core codes, libraries, helpers and other files, which help make the coding easy. These libraries and helpers are loaded and used in web app development. This folder contains all the CodeIgniter code of consequence, organized into various folders: Core: This folder contains CodeIgniter’s core class. Do not modify anything here. All of your work will take place in the application folder. Even if your intent is to extend the CodeIgniter core, you have to do it with hooks, and hooks live in the application folder. Database: The database folder contains core database drivers and other database utilities. Fonts: The fonts folder contains font related information and utilities. Helpers: The helpers folder contains standard CodeIgniter helpers (such as date, cookie, and URL helpers). Language: The language folder contains language files. You can ignore it for now. Libraries: The libraries folder contains standard CodeIgniter libraries (to help you with e-mail, calendars, file uploads, and more). You can create your own libraries or extend (and even replace) standard ones, but those will be saved in the application/libraries directory to keep them separate from the standard CodeIgniter libraries saved in this particular folder. User_guide This is your user guide to CodeIgniter. It is basically, the offline version of user guide on CodeIgniter website. Using this, one can learn the functions of various libraries, helpers 6
Page 2 and 3: CodeIgniter About the Tutorial Code
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 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
Page 52 and 53: CodeIgniter $this->email->subject('
Page 54 and 55: 12. Form Validation CodeIgniter Val
Page 56 and 57: CodeIgniter } } Add the following l
Page 58 and 59: 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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