Implement Dynamic Google Pie Charts With PHP Codeigniter

In this codeigniter google pie charts tutorial, We would love to share with you how to implement google pie chart with PHP codeigniter. How to fetch month wise and year wise data to from mysql for showing on google pie charts.

In this Codeigniter tutorial, You will learn how to get month wise and year wise data from mysql database and how to show the data on google pie charts.

We will fetch monthly and yearly record from mysql database. Every month and year, How many users registered from our database. We provide demo link at the end of article. Checkout the link.

Codeigniter Google Pie Charts

Contents

• Download Codeigniter Latest
• Basic Configurations
• Create Database With Table
• Setup Database Credentials
• Make New Controller
• Create Views
• Start Development server
• Conclusion

Download Codeigniter Project

In this step we will download the latest version of Codeigniter, Go to this link Download Codeigniter download the fresh setup of codeigniter and unzip the setup in your local system xampp/htdocs/ . And change the download folder name “demo”

Basic Configurations

Next we will set the some basic configuration on config.php file, so let’s go to application/config/config.php and open this file on text editor.

Set Base URL like this

$config['base_url'] = 'http://localhost/demo/';

Create Database With Table

In this step, we need to create database name demo, so let’s open your phpmyadmin and create the database with the name demo . After successfully create a database, you can use the below sql query for creating a table in your database.

CREATE TABLE users (
    id int(11) NOT NULL AUTO_INCREMENT COMMENT 'Primary Key',
    name varchar(100) NOT NULL COMMENT 'Name',
    email varchar(255) NOT NULL COMMENT 'Email Address',
    contact_no varchar(50) NOT NULL COMMENT 'Contact No',
    created_at varchar(20) NOT NULL COMMENT 'Created date',
    PRIMARY KEY (id)
  ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COMMENT='datatable demo table' AUTO_INCREMENT=1;

  INSERT INTO users (id, name, email, contact_no, created_at) VALUES
  (1, 'Team', '[email protected]', '9000000001', '2019-01-01'),
  (2, 'Admin', '[email protected]', '9000000002', '2019-02-01'),
  (3, 'User', '[email protected]', '9000000003', '2018-03-01'),
  (4, 'Editor', '[email protected]', '9000000004', '2019-04-01'),
  (5, 'Writer', '[email protected]', '9000000005', '2017-05-01'),
  (6, 'Contact', '[email protected]', '9000000006', '2019-06-01'),
  (7, 'Manager', '[email protected]', '9000000007', '2019-07-01'),
  (8, 'John', '[email protected]', '9000000055', '2016-08-01'),
  (9, 'Merry', '[email protected]', '9000000088', '2019-09-01'),
  (10, 'Keliv', '[email protected]', '9000550088', '2019-10-01'),
  (11, 'Herry', '[email protected]', '9050550088', '2019-11-01'),
  (12, 'Mark', '[email protected]', '9050550998', '2019-12-01');

Setup Database Credentials

In this step, We need to connect our project to database. we need to go application/config/ and open database.php file in text editor. After open the file in text editor, We need to setup database credential in this file like below.

$db['default'] = array(
	'dsn'	=> '',
	'hostname' => 'localhost',
	'username' => 'root',
	'password' => '',
	'database' => 'demo',
	'dbdriver' => 'mysqli',
	'dbprefix' => '',
	'pconnect' => FALSE,
	'db_debug' => (ENVIRONMENT !== 'production'),
	'cache_on' => FALSE,
	'cachedir' => '',
	'char_set' => 'utf8',
	'dbcollat' => 'utf8_general_ci',
	'swap_pre' => '',
	'encrypt' => FALSE,
	'compress' => FALSE,
	'stricton' => FALSE,
	'failover' => array(),
	'save_queries' => TRUE
);

Create Controller

Now we need to create a controller name Chart.php. In this controller we will create some method/function. We will build some of the methods like :

• Index() – This is used to fetch the record from database and pass the data to view.

<?php

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

class Chart extends CI_Controller {

    public function __construct() {
        parent::__construct();
		// load model
        $this->load->database();
        $this->load->helper(array('url','html','form'));
    }    
    
    public function google_pie_chart() {

      $monthQuery =  $this->db->query("SELECT COUNT(id) as count,MONTHNAME(created_at) as month_name FROM users WHERE YEAR(created_at) = '" . date('Y') . "'
      GROUP BY YEAR(created_at),MONTH(created_at)"); 
      
      $yearQuery =  $this->db->query("SELECT COUNT(id) as count,YEAR(created_at) as year FROM users
      GROUP BY YEAR(created_at)"); 

      $data['month_wise'] = $monthQuery->result();
      $data['year_wise'] = $yearQuery->result();
  
      $this->load->view('google_pie_chart',$data);

    }
    
}
?>

In this controller function, we fatch the record from database for showing the data on google pie charts.

Create Views

Now we need to create google_pie_chart.php, go to application/views/ folder and create google_pie_chart.php file. Here put the below html code for showing data on pie charts.

<!Doctype html>
<html>
<head>
  <title>Google Pie Chart Month and Year Wise Codeigniter Tutorial Tutsmake</title>
  <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
  <script type="text/javascript">
      google.charts.load('visualization', "1", {
          packages: ['corechart']
      });
  </script>
</head>
<body>
<div class="row">
  <div class="col-md-12">
    <div id="month_pie" style="width: 900px; height: 500px; margin: 0 auto"></div>
    <div id="year_pie" style="width: 900px; height: 500px; margin: 0 auto"></div>
  </div>  
</div>
</body>
</html>

Implement Javascript code

Finally we will implement javascript code for showing a data on google pie chart. Now we will put the code on script tag after the closing of body tag.

    <script language="JavaScript">
      // Draw the pie chart for registered users month wise
      google.charts.setOnLoadCallback(monthWiseChart);

      // Draw the pie chart for registered users year wise
      google.charts.setOnLoadCallback(yearWiseChart);
      
      //for month wise
      function monthWiseChart() {

            /* Define the chart to be drawn.*/
            var data = google.visualization.arrayToDataTable([
                ['Month', 'Users Count'],
                <?php 
                 foreach ($month_wise as $row){
                 echo "['".$row->month_name."',".$row->count."],";
                 }
                 ?>
            ]);
            var options = {
                title: 'Month Wise Registered Users Of Current Year <?php echo date("Y")?>',
                is3D: true,
            };
            /* Instantiate and draw the chart.*/
            var chart = new google.visualization.PieChart(document.getElementById('month_pie'));
            chart.draw(data, options);
      }
      // for year wise
      function yearWiseChart() {

        /* Define the chart to be drawn.*/
        var data = google.visualization.arrayToDataTable([
            ['Year', 'Users Count'],
            <?php 
             foreach ($year_wise as $row){
             echo "['".$row->year."',".$row->count."],";
             }
             ?>
        ]);
        var options = {
            title: 'Year Wise Registered Users Pie Chart',
            is3D: true,
        };
        /* Instantiate and draw the chart.*/
        var chart = new google.visualization.PieChart(document.getElementById('year_pie'));
        chart.draw(data, options);
      }
    </script>

In this script code, we have intialize the google pie charts with php codeigniter and set the data on it.

Start Development server

For start development server, Go to the browser and hit below the url.

http://localhost/demo/chart/google_pie_chart

Conclusion

In this codeigniter google pie charts tutorial, We have successfully fetch the record from database with month and year wise and display on the google pie charts.

If you have any questions or thoughts to share, use the comment form below to reach us.