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2. Presenters:
Awais Hammed
Ayaz Farid Shah
Samiya Rafique

4. What is Framework??
A PHP framework is a basic platform that allows us to
develop web applications.
Benefits of using Framework:
 Its easy to handle the complex problems easily.
 Standardization
 Security
 Extensibility
 Fast Loading
 Reusable of code
 Increase Flexibility

5. Top 10 Frameworks
 Codeigniter
 Yii
 CakePHP
 Zend
 Symfony
 PHPDevShell
 Prado
 Akelos
 Zoop
 QPHP

6. Introduction
 PHP Web Application Frameworks
 Open Source
 Rapid Development up to 50%
 Originally Released in 2006
 Recommended by Rasmus Lerdof

7. Why choose codeigniter
 Light Weight
 Fast Performance
 Little Configuration
 Little Server Requirements
 Easy to Understand
 No installation Necessary
 Built in Security tools
Database Abstraction

8. Why use Framework (LikeCodeigniter )
Reusability
Avoid Copy/Paste
Reuse codes in multiple projects
Maintainability
Anyone can extend or edit your application

9. Codeigniter follow MVC
World’s best framework follows MVC Architecture
Reasons:
 Organize code
 Logics
 Application divide into(Model-View-Controller )

10. What should you know
 HTML
 CSS
 PHP
 MY SQL

11. Directory Structure
Application Folder
 Cache
 Config
 Controllers
 Core
 Helpers
 Languages
 Libraries
 Logs
 Models
 Third party
 View

12. Directory Structure (Cont.…)
System Folder
 Core
 Database
 Fonts
 Helpers
 Languages
 Libraries

13. Directory Structure (Cont.…)
User Guide Folder
 Index.html

14. Codeigniter Architecture

15. Codeigniter Classes
CI’s built-in classes contain the basic functionality that are frequently
used by web applications.
The most-used classes are 5:
 Database
 Input
 Loader
 URI
 Validation

16. Database Class
 Codeigniter provides a simple way to access the database.
 Generates queries using the Active Record(insert, update and
retrieve with minimal scripting ) Pattern.
 Provides method “chaining” for easy query building
 $this->db.->where(‘name’,$name);

17. Input Class
The Input Class serves two purposes:
 It pre-processes global input data for security.
 It provides some helper methods for fetching input data and pre-processing it.
Input Filtering
 Security Filtering
 XSS Filtering( prevent cross-site scripting attacks)
 Assessing form data
 $this->input->post();
 $this->input->get();
 $this->input->cookie();
 $this->input->server();

18. Loader Class(Theseelementscanbelibraries(classes))
Loader, as the name suggests, is used to load elements. These elements can
be libraries (classes) View files, Drivers, Helpers, Models, or your own files
like.
 Databases
Views
 Helpers (small php functions)
 Plugins (is a piece of software that acts as an add-on to a web browser and
gives the browser additional functionality.)
 $this->load->view(‘viewname’);

19. URI(UniformResourcesIdentifier) Class
The URI Class provides methods that help you retrieve information from
your URI strings.
Provides access to specific parts of the URI string.
Typically there is a one-to-one relationship between a URI string and its
corresponding controller class/method.
 $this->uri->segment(n);

20. Validation Class
Helps validate user form input
 Required fields
 Required string formatting (length,)
Enables success and failure messages on form submittal
form submittal

21. Creating Libraries
 Libraries are similar to helpers.
 You can create entirely new libraries.
 You can extend native libraries.
 You can replace native libraries.

22. Steps for creating a “Hello World”
program in CI

23. References
 PHP framework comparison benchmarks
 http://avnetlabs.com/php/php-framework-comparison-
benchmarks
 Why Should we use a PHP Framework?
 http://www.ashesh.com.np/why-should-we-use-a-php-
framework/
 CakePHP official site
 http://cakephp.org/
 CodeIgniter Site
 http://codeigniter.com
 PHP frameworks lists
 http ://www.phpframeworks.com/
 http://www.phpwact.org/pattern/model_view_co
ntroller

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