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Accessing data categorized by months is often essential in web applications for various reporting, analytical, or visualization purposes. In CodeIgniter 4, fetching data month-wise empowers developers to efficiently retrieve and display information organized by specific months.

In this tutorial, we’ll see the comprehensive process of retrieving month-wise data using CodeIgniter 4. This functionality enables developers to extract records categorized by individual months, facilitating detailed analysis or presentation based on monthly data.

Selecting data rows from database in codeigniter 4, we have several options available as – Using Models, Using Query Builder, Using Raw queries.

Let’s get started.

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.

Database Connection

Open .env file from project root.

Search for DATABASE. You should see the connection environment variables into it. Put your updated details of database connection string values.

 
#--------------------------------------------------------------------
# DATABASE
#--------------------------------------------------------------------

database.default.hostname = localhost
database.default.database = codeigniter4_app
database.default.username = admin
database.default.password = admin
database.default.DBDriver = MySQLi
database.default.DBPrefix =
database.default.port = 3306

Now, database successfully connected with the application.

Sample Database Data Rows

Here, we have taken a sample database to understand this example. codeigniter4_app is the name of database.

Let’s say we have a users table inside it which contains users data. Please look into this screenshot to get clear vision about table.

Next,

We want to get the count of users month wise from this table in CodeIgniter 4.

Create Query for Data

Open any controller from your application.

Let’s add month wise concept into it to get data.

<?php

namespace App\Controllers;

class Site extends BaseController
{
    private $db;
  
    public function __construct()
    {
        $this->db = db_connect();
    }

    public function getUsers()
    {
        $usersTable = $this->db->table("users");
        $usersTable->select('count(id) as total_users, Month(created_at) as month');
        $usersTable->groupBy("Month(created_at)");
        $query = $usersTable->get();

        //echo $this->db->getLastQuery();

        echo "<pre>";
        print_r($query->getResult());
    }
}

Query Concept

Make use of Query grouping month wise to get total users count month wise.

Generated Query

SELECT count(id) as total_users, Month(created_at) as month FROM `users` GROUP BY Month(created_at)

When we run this code, we will get result as

That’s it.

We hope this article helped you to learn about How to Get Month Wise Data in CodeIgniter 4 Tutorial in a very detailed way.

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