Number From International System To Indian System

Reading Time: 4 minutes

Inside this article we will see conversion of a International number into Indian format number. Let’s consider a CodeIgniter 4 application and we want to do it. So what’s the plan?

Need to create a helper function, load it and use anywhere inside the application either inside any of views or inside into controllers.

Learn More –

Let’s get started.

Number System Chart

We have few examples here. Have a look into the complete chart.

International Numeric System

Indian Numeric System

Let’s see the things in CodeIgniter 4 by making a custom helper.

CodeIgniter 4 Installation

To create a CodeIgniter 4 setup run this given command into your shell or terminal. Please make sure composer should be installed.

composer create-project codeigniter4/appstarter codeigniter-4

Assuming you have successfully installed application into your local system.

Environment (.env) Setup

When we install CodeIgniter 4, we will have env file at root. To use the environment variables means using variables at global scope we need to do env to .env

Either we can do via renaming file as simple as that. Also we can do by terminal command.

Open project in terminal

cp env .env

Above command will create a copy of env file to .env file. Now we are ready to use environment variables.

Enable Development Mode

CodeIgniter starts up in production mode by default. You need to make it in development mode to see any error if you are working with application.

Open .env file from root.

# CI_ENVIRONMENT = production

 // Do it to 
CI_ENVIRONMENT = development

Now application is in development mode.

Create CodeIgniter 4 Helper

Helpers contain standalone functions which can be used through out application to complete any specific task.

To create CodeIgniter 4 helper, need to create a PHP file into folder /app/Helpers.

Let’s create a file named as numsystem_helper.php. Keep in mind we have concatenated _helper with the name of helper file.

// Checking function already exists or not
    function indian_system($value){
        $len = strlen($value);
        $m = '';
        $value = strrev($value);
            if(( $i==3 || ($i>3 && ($i-1)%2==0) )&& $i!=$len){
                $m .=',';
            $m .=$value[$i];
        return strrev($m);

We have created a function inside that helper file. To use this, first we need to load and then we can freely use it.

Load CodeIgniter 4 Helper

We have two options available to load helpers in application. Either we can use BaseController.php means parent controller or we can load into individual controller.

// find $helpers into controller and load custom helper

protected $helpers = ["numsystem"]; 


Keep in mind, we haven’t included _helper while loading into application.

If we want to load in any specific individual controller, need to use helper() function.


namespace App\Controllers;

class Site extends BaseController
  public function number_system()
    echo indian_system(10000); // 10,000

Using Helper for Indian Number Format

After loading helper into application. Now we have an access to use it in a free way. If we are in any view file, simply pass your number value into the function.

Example: 1000000


Output: 10,00,000

We hope this article helped you to learn about Convert Number From International System To Indian System in a very detailed way.

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Sanjay KumarHello friends, I am Sanjay Kumar a Web Developer by profession. Additionally I'm also a Blogger, Youtuber by Passion. I founded Online Web Tutor and Skillshike platforms. By using these platforms I am sharing the valuable knowledge of Programming, Tips and Tricks, Programming Standards and more what I have with you all. Read more