In Codeigniter we dont got to worry about such classes and configurations. 
we'll only got to download latest version from there website and after unzipping and 
fixing few belongings you are able to go. the entire zip comes with 3 folders usually,

– application
– system
– user_guide

The system/ folder contains all libraries and classes 
which we will add and use in our application. We dont got to do anything with system 
folder because all our work will attend application folder. the appliance folder may be a set of 
folders and every folder name defines the aim of its creation.

What is Codeigniter?

CodeIgniter may be a PHP MVC framework used for developing web applications rapidly. CodeIgniter provides out of the box libraries for connecting to the database and performing various operations like sending emails, uploading files, managing sessions, etc.

Codeigniter Features

Let's see a number of the features that make CodeIgniter great. the subsequent list isn't exhaustive but gives you a thought of what to expect when working with CodeIgniter.

Small footprint

The entire ASCII text file for CodeIgniter framework is on the brink of 2MB. This makes it easy to master CodeIgniter and the way it works. It also simplifies deploying and updating it.

Blazing fast

Users tend to favor applications that load in no time . If you've got worked with a number of the fashionable frameworks, then you'll realize that they take but one second to load just after installation. CodeIgniter, you'll loads on the average around but 50ms. the additional time spent optimizing like is that the case in another framework is freed up once you are working with CodeIgniter.

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Loosely coupled

The built-in features are designed to figure independently without relying an excessive amount of on other components. This makes it easy to take care of and make upgrades

MVC Architecture

The framework uses the Model-View-Controller architectural design. it's industry standard practices when working with web applications. MVC separates the info , business logic, and presentation.

Excellent documentation:

The framework is well documented, and there are good books, tutorials and answered forum questions on CodeIgniter. this suggests whatever challenge that you simply have, likelihood is that someone has already encountered the matter , solved it and therefore the solution is out there for you.

Application specific built-in components:

Codeigniter has components for sending email, management , session management and lots of more as you'll discover as we continue with the tutorials.


Codeigniter comes with some libraries, and helpers out of the box. If what would really like |you wish"> you would like isn't there otherwise you would like to implement an existing feature your way. Then you'll do so easily by creating your libraries, helpers, packages, etc.

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