Start coding with CodeIgniter using PhpStorm on Ubuntu 16.04

CodeIgniter uses MVC architecture. 

Model 

Stores php files which are communicate with the database. Get, store, update informations to the database are handled by php files in model. Login, registration, etc... 

View 

Stores php files which display informations in the browser. Tables, images, descriptions, etc.. 

Controller 

Stores php files which make the connection between model and the view. When files in the model get information, the controller will call the relevant file in the view and display them to the user.

Let's start coding with CodeIgniter framework. 

Step 1 : Download codeIgniter framework from CodeIgniter.

Step 2 : Copy files to a folder called Login (in my case the folder path /home/shyamali/Projects/CodeIgniter/Login)

Step 3 : Then open Login folder by using PhpStorm. If you have not yet installed PhpStrom How to install PhpStrom in Ubuntu 16.04.

Step 4 : If you have not yet installed Apache How to install LAMP in ubuntu 16.04.

Step 5 : Then you can create a virtual host to run your codeIgniter project by using Create an apache virtual host in ubuntu 16.04. Now you are ready to code php.

Step 6 : To style your project you can add Bootstrap to you project Merge Bootstrap to your current codeIgniter project in PhpStorm on ubuntu 16.04.

Let's create a simple example in your project.

Create a controller name Test.php in your controller. Right click on controllers -> New -> Php Class.

Define base path just after opening of <?php

defined('BASEPATH') OR exit('No direct script access allowed');

Then extends it to CI_Controller class.

class Test extends CI_Controller {
//your code
}

You have to create a view file in views called welcome.php. Inside the view file you can add content that you want to display in the browser. For the moment I have just echo welcome message.

echo "Welcome";

Then create a function called welcome_view() inside the Test class. Then you have to load the created view inside the function.

$this->load->view("welcome");

Now you have created view file and the controller. Then you have to navigate your browser type url with your view. The view file has been loaded by the controller. Now you just have to make the connection with your url and the welcome_view() function. To do that you have to give routes. There is a file called routes.php inside config directory. Open it and at the end paste following code.

$route['welcome'] ='Test/welcome_view';

This means when you type your base url/welcome goto Test class welcome_view function.

Test.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
  class Test extends CI_Controller
  {
    public function welcome_view()
   {
     $this->load->view("welcome");
   }
  }

welcome.php

<?php
echo "Welcome";

Inside the routes.php file

$route['welcome'] ='Test/welcome_view';

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