Codeignitor
- 1. Codeigniter
- 2. Top 5 PHP frameworks of 2017 1. Laravel 2. Symfony 3. CodeIgniter 4. CakePHP 5. Zend Framework
- 4. CodeIgniter CodeIgniter is a lightweight web application framework written in PHP that adopts the model-view-controller approach to development Download link: https://codeigniter.com/download UserGuide link: https://codeigniter.com/userguide2/
- 5. Why use a framework? Web application frameworks provide basic building blocks needed by applications – Database connections – Business logic – Form handling – Separation of concerns – Easier testing (unit tests)
- 6. Why use CodeIgniter? – Feature rich – Lightweight – Open source – Well-supported by an active community – Excellent “by example” documentation – Easy to configure – Supports multiple databases
- 7. Model-View-Controller Model – representation of the data Model View – rendering of the data suitable for interaction with the user. Controller – the “traffic cop” that passes model data to the views and vice versa. This separation of concerns allows for greater flexibility, reuse of code, and overall preservation of the developer’s sanity
- 8. Controller A class containing one or more related methods (custom PHP functions) Typical uses: – Request a set of data from the model by sending arguments – Send a payload of data to a view (web page) – Receive a data payload from a view – Apply business logic to make decisions – Pass data to the model for inclusion in a database
- 9. View Code that displays information to the user Views can be: – Web pages with PHP code snippets inserted – Web pages with forms to gather user input – Other output (CSV, PDF, etc.)
- 10. Model A class containing one or more related (custom PHP functions) methods, Typical uses: – Create – Read – Update – Delete
- 11. CodeIgniter Classes CI’s built-in classes contain the basic functionality that are frequently used by web applications The most-used classes are: – Database – Input – Loader – URI – Validation
- 12. Database Class – Generates queries using the Active Record Pattern – Automatic escaping of input values – Provides method “chaining” for easy query building – $this->load->database(); // database class load here. – $this->db->get(‘usermaster’); // Fetch data from usermaster table.
- 13. Input Class Provides access to user input and other data: – Form fields (POST) – Cookies – Server variables – $this->input->post(‘fieldname’);
- 14. Loader Class Makes various resources available: – Databases – Views – Helpers – Plugins $this->load->view(‘viewname’);
- 15. URI Class Provides access to specific parts of the URI string Useful for building RESTful URIs $this->uri->segment(n);
- 16. Validation Class Helps validate user form input – Required fields – Required string formatting (length, regexp) – Enables success and failure messages on form submittal
- 17. Other Classes Benchmarking Calendaring Email Encryption File uploading FTP HTML Table Image Manipulation Language (internationalization) Output Pagination Session Trackback Unit testing XML-RPC Zip encoding
- 18. Thanks!!!!!