Codeigniter

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CODEIGNITER

CONTENT

Introduction to CodeIgniter

•Open source PHP web application framework •Rapid development

•Provides logical structure , reusable interface

Why should i use a framework

• Code and File Organization• Utilities and Libraries• The MVC Pattern• Security• Less Code & Faster development• Performance Tools• Suitable for Teamwork

Folder structure in codeIgniter

•This folder contain number of configuration files.

they are: config.php autoload.php database.php routes.php

Config.php URL to your CodeIgniter root

ex: 'http://127.0.0.1/shop_automation/';

If u want to use session you set something in it.

name you want for the session lifetime of the session to expire session on browser

close

autoload.phpspecifies which systems should be loaded by default.

These are the classes located in the system

Auto-load Helper Files

database.phpcontain the settings needed to access your database.

routes.phpThis file lets you re-map URI requests to specific controller

indicates which controller class should be

loaded

folder structure in codeIgniter•It is a class file•That controls and co-ordinates view and model.

folder structure in codeIgniter

•Model is also class which handles database operations.

folder structure in codeIgniter

•Its a web page called by controller

folder structure in codeIgniter

•It contain all the helper and libraries located.

CodeIgniter URLs•URLs in CodeIgniter are designed to be search- engine and human friendly.•CodeIgniter uses a segment-based approach ex:example.com/news/article/my_article

URI Segments•The segments in the URL, in following with the Model-View-Controller approach

usually represent : example.com/class/function/ID

1. represents the controller class2.  represents the class function, or method3. any additional segments, represent the ID and any

variables

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