CODEWITHSUNDEEP
javascriptjsonhighcharts
user1809110
user1809110

Reputation: 21

JSON data not showing in highstock Candlestick chart using PHP & MYSQL

I'm trying to create a highstock's candlestick chart using php and mySQL.

this is my code so far, really appreciate if anyone can help me with this:

This my code for retrieving data from mySQL database and convert it to JSON format (datachart.php):

$conn = mysql_connect("localhost", "root", "") or die (mysql_error ());
$db = mysql_select_db ("b27sim") or die (mysql_error ());

$result=mysql_query ("SELECT date, open, high, low, close FROM mb27_daily") or die (mysql_error ());

$data = array();
$count = 0;
while ($row=mysql_fetch_array($result))
{

  $newdate = strtotime($row['date']) * 1000; 
  $data[] = array( $newdate, (float)$row['open'], (float)$row['high'], (float)$row['low'], (float)$row['close']);
  $count++;
}   
echo json_encode($data);

This is the result from datachart.php:

[[1350252000000,369.72,371.02,368.09,370.22],[1349820000000,366.58,369.13,364.92,368.92],[1349733600000,367.38,369.93,366.82,368.64],[1349388000000,367.28,371.85,367.2,369.9],[1349301600000,362.75,366.24,362.22,365.61],[1349215200000,363.34,363.54,361.27,362.27],[1349128800000,360.79,362.73,360.33,361.77],[1349042400000,360.75,360.75,357.94,359.46],[1348783200000,360.62,362.69,359.84,362.5],[1348696800000,356.39,361.01,355.32,359.34],[1348524000000,358,360.39,356.34,359.7],[1348437600000,357.96,360.99,355.92,356.89],[1348178400000,359.27,360.53,356.93,360.53],[1348092000000,358.74,359.31,356.51,358.01],[1348005600000,357.97,361.82,357.24,359.86],[1347919200000,359.8,360.34,356.78,358.5],[1233010800000,119.28,122.42,119.28,121.91]]

And this is my javascript code inside index.htm:

$(function() {
    $.getJSON('datachart.php', function(data) {

    // create the chart
    chart = new Highcharts.StockChart({
        chart : {
            renderTo : 'container',
        },

        rangeSelector : {
            selected : 1
        },

        title : {
            text : 'IB27 Price'
        },

        series : [{
            type : 'candlestick',
            name : '',
            data : data,
            tooltip: {
                valueDecimals: 2
            },
            dataGrouping : {
                units : [
                    ['week', // unit name
                    [1] // allowed multiples
                ], [
                    'month', 
                    [1, 2, 3, 4, 6]]
                ]
            }
        }]
    });
    });
});

and this is my div calling the container:

<div id="container" style="height: 500px; min-width: 500px"></div>

and this is the result: I got has not graph inside, but showing the timeline at the bottom, the date range on right top, etc.

Appreciate you guys help on this as I've been banging my head for the last 4 hours because of this... :)

Thanks, Raz

Upvotes: 2

Views: 1753

Answers (1)

Sebastian Bochan
Sebastian Bochan

Reputation: 37588

Your data should be sorted by x (timestamps), ascending.

Upvotes: 1

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