Codeigniter tutorials for beginners

what is codeigniter framework

CodeIgniter is based on the Model-View-Controller (MVC) development pattern. MVC is a software approach that separates application logic from presentation. ... A View will normally be a web page, but in CodeIgniter, a view can also be a page fragment like a header or footer.

Codigniter features

• Model-View-Controller Based System
• Extremely Light Weight
• Full Featured database classes with support for several platforms.
• Query Builder Database Support
• Form and Data Validation
• Security and XSS Filtering
• Session Management
• Email Sending Class. Supports Attachments, HTML/Text email, multiple protocols (sendmail, SMTP, and Mail) and more.
• Image Manipulation Library (cropping, resizing, rotating, etc.). Supports GD, ImageMagick, and NetPBM
• File Uploading Class
• FTP Class
• Localization
• Pagination
• Data Encryption
• Benchmarking
• Full Page Caching
• Error Logging
• Application Profiling
• Calendaring Class
• User Agent Class
• Zip Encoding Class
• Template Engine Class
• Trackback Class
• XML-RPC Library
• Unit Testing Class
• Search-engine Friendly URLs
• Flexible URI Routing
• Support for Hooks and Class Extensions
• Large library of “helper” functions

model-view-controllers

CodeIgniter is based on the Model-View-Controller development pattern. MVC is a software approach that separates application logic from presentation. In practice, it permits your web pages to contain minimal scripting since the presentation is separate from the PHP scripting.

• The Model represents your data structures. Typically your model classes will contain functions that help you retrieve, insert, and update information in your database.
• The View is the information that is being presented to a user. A View will normally be a web page, but in CodeIgniter, a view can also be a page fragment like a header or footer. It can also be an RSS page, or any other type of “page”.
• The Controller serves as an intermediary between the Model, the View, and any other resources needed to process the HTTP request and generate a web page.