Hi,

i want to create a pie chart in my website by taking values from database. I should display the top 10 most purchased product in the form of pie chart in my website. But i dont know how to do it. I have no clue how to start.

Please someone help me in this.

can use the google charts api, which creates a very nice interactive graph but might be bit steep a gradient to understand it:
https://google-developers.appspot.com/chart/interactive/docs/gallery/piechart

<html>
  <head>
    <script type="text/javascript" src="https://www.google.com/jsapi"></script>
    <script type="text/javascript">
      google.load("visualization", "1", {packages:["corechart"]});
      google.setOnLoadCallback(drawChart);
      function drawChart() {
        var data = google.visualization.arrayToDataTable([
          ['Task', 'Hours per Day'],
          ['Work',     11],
          ['Eat',      2],
          ['Commute',  2],
          ['Watch TV', 2],
          ['Sleep',    7]
        ]);

        var options = {
          title: 'My Daily Activities'
        };

        var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
        chart.draw(data, options);
      }
    </script>
  </head>
  <body>
    <div id="chart_div" style="width: 900px; height: 500px;"></div>
  </body>
</html>

basically you want to output through php into javascript your top 10 data at this point:

 var data = google.visualization.arrayToDataTable([
          ['Task', 'Hours per Day']
          <?php 
          $i = 0;
          //start loop
          //while or foreach
          foreach($data as $v){
            echo ",['{$name}'],{$count}]\r\n";
          }
          ?>
        ]);

Hi thanks for the replay. I went through this. But i did not understand how to use it. Actually i have top10 products in 1 column and its name , i have to display these two in pie. I dont know know how to relate to this with my data. Can u please explain me :(

What i shopuld put in my foreach or while loop. please suggest me

is the data in mysql? whats the table structure

Yes. its in MySql database and the strusture is like this

CREATE TABLE `product` (
  `product_id` int(11) NOT NULL AUTO_INCREMENT,
  `model` varchar(64) COLLATE utf8_bin NOT NULL,
  `sku` varchar(64) COLLATE utf8_bin NOT NULL,
  `upc` varchar(12) COLLATE utf8_bin NOT NULL,
  `location` varchar(128) COLLATE utf8_bin NOT NULL,
  `quantity` int(4) NOT NULL DEFAULT '0',
  `stock_status_id` int(11) NOT NULL,
  `image` varchar(255) COLLATE utf8_bin DEFAULT NULL,
  `manufacturer_id` int(11) NOT NULL,
  `shipping` tinyint(1) NOT NULL DEFAULT '1',
  `shippingamount` varchar(50) COLLATE utf8_bin NOT NULL,
  `price` decimal(15,4) NOT NULL DEFAULT '0.0000',
  `points` int(8) NOT NULL DEFAULT '0',
  `tax_class_id` int(11) NOT NULL,
  `date_available` date NOT NULL,
  `weight` decimal(15,8) NOT NULL DEFAULT '0.00000000',
  `weight_class_id` int(11) NOT NULL DEFAULT '0',
  `length` decimal(15,8) NOT NULL DEFAULT '0.00000000',
  `width` decimal(15,8) NOT NULL DEFAULT '0.00000000',
  `height` decimal(15,8) NOT NULL DEFAULT '0.00000000',
  `length_class_id` int(11) NOT NULL DEFAULT '0',
  `subtract` tinyint(1) NOT NULL DEFAULT '1',
  `minimum` int(11) NOT NULL DEFAULT '1',
  `sort_order` int(11) NOT NULL DEFAULT '0',
  `status` tinyint(1) NOT NULL DEFAULT '0',
  `date_added` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `date_modified` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `viewed` int(5) NOT NULL DEFAULT '0',
  PRIMARY KEY (`product_id`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=56 ;

In this i want to display top 10 most viewed products in pie chart format.

please help me...

Here is my code, i tried like this. But nothing is getting displayed. I am not getting how to loop it

<script type="text/javascript" src="https://www.google.com/jsapi"></script>
    <script type="text/javascript">
      google.load("visualization", "1", {packages:["corechart"]});
      google.setOnLoadCallback(drawChart);
      function drawChart() {
        var data = google.visualization.arrayToDataTable([
          ['Task', 'Hours per Day'],
          <?php 
          $stringResult;
          $i = 0;
          $sql = "select * from product inner join product_description on product.product_id = product_description.product_id order by product.viewed desc limit 10";
          $results1 = $this->db->query($sql);
          //for($i=0; $i<10; ++$i)
          {
          $stringResult .= "data[" .$i. "] = { label:" .$results['name'].", data: ". $results['quantity'] ."}";
           $i++;

         // foreach($data as $v){
           // echo ",['{$name}'],{$count}]\r\n";
            return $stringResult;
          }
          ?>
        ]);

        var options = {
          title: 'My Daily Activities'
        };

        var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
        chart.draw(data, options);
      }
    </script>

Suggest me where i am doing wrong and how to correct it.

test prod sold table(didnt have yours)

create table `product_sold` (
    `transid` int (7),
    `prodid` int (5),
    `amtsold` int (4)
); 
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('1','1','2');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('2','1','1');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('3','2','8');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('4','3','3');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('5','4','5');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('6','5','12');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('7','6','4');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('8','7','3');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('9','8','8');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('10','9','8');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('11','10','2');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('12','2','4');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('13','3','12');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('14','4','1');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('15','5','5');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('16','6','2');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('17','7','32');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('18','8','5');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('19','9','18');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('20','10','4');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('21','4','1');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('22','5','14');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('23','8','34');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('24','9','3');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('25','6','12');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('26','1','21');
insert into `product_sold` (`transid`, `prodid`, `amtsold`) values('27','10','16');

Mysql query for the data:

SELECT p.product_id,ps.prodid,SUM(ps.amtsold) AS `total_sold` FROM product p LEFT JOIN product_sold ps ON p.product_id = ps.prodid
GROUP BY p.product_id
ORDER BY SUM(ps.amtsold) DESC
LIMIT 10;

php page that pulls the data and displays it:

<html>
  <head>
    <script type="text/javascript" src="https://www.google.com/jsapi"></script>
    <script type="text/javascript">
      google.load("visualization", "1", {packages:["corechart"]});
      google.setOnLoadCallback(drawChart);
      function drawChart() {
         var data = google.visualization.arrayToDataTable([
          ['Prodid', 'Num Sold']
          <?php 
          $DB = mysqli_connect('localhost','user','pass','bim');
          $Q = "SELECT p.product_id,SUM(ps.amtsold) AS `total_sold` FROM product p LEFT JOIN product_sold ps ON p.product_id = ps.prodid
            GROUP BY p.product_id
            ORDER BY SUM(ps.amtsold) DESC
            LIMIT 10";
          $R = mysqli_query($DB,$Q);
          //start loop
          //while or foreach
          while($row = mysqli_fetch_assoc($R)){
            echo ",['{$row['product_id']}',{$row['total_sold']}]\r\n";
          }
          ?>
        ]);
        var options = {
          title: 'Top Sold Products'
        };
        var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
        chart.draw(data, options);
      }
    </script>
  </head>
  <body>
    <div id="chart_div" style="width: 900px; height: 500px;"></div>
  </body>
</html>