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No chart is shown using HighCharts - javascript

I have started using HighCharts and I have come up with the below code to test it out but the problem is that no chart is shown.
I want a simple line chart with dates running along the bottom and numbers running upwards.
Code
<?php
$sql = array(
'user' => 'removed',
'password' => 'removed',
'server' => 'removed',
'db' => 'removed'
);
$conn = oci_connect($sql['user'], $sql['password'], $sql['server'].'/'.$sql['db']);
if (!$conn) {
$e = oci_error();
trigger_error( htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR );
}
$result = oci_parse($conn, "SELECT EntryDate, COUNT(OrderNo) FROM Orders GROUP BY EntryDate");
oci_execute($result);
while ($row = oci_fetch_array($result)) {
$data0[] = $row['0'];
$data1[] = $row['1'];
}
?>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script>
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'line'
},
xAxis: {
categories: [<?php echo join($data0, ',') ?>]
},
yAxis: {
title: {
text: 'Orders'
}
},
series: [{
data: [<?php echo join($data1, ',') ?>],
pointStart: 0,
pointInterval
}]
});
</script>
<div id="container" style="height:100%; width:100%;"></div>
Results
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script>
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'line'
},
xAxis: {
categories: [01-NOV-12,02-NOV-12,03-NOV-12,05-NOV-12,06-NOV-12,07-NOV-12,08-NOV-12,09-NOV-12,12-NOV-12,13-NOV-12,14-NOV-12,15-NOV-12,16-NOV-12,19-NOV-12,20-NOV-12,21-NOV-12,22-NOV-12,23-NOV-12,24-NOV-12,26-NOV-12,27-NOV-12,28-NOV-12,29-NOV-12,30-NOV-12,01-DEC-12,02-DEC-12,03-DEC-12,04-DEC-12,05-DEC-12,06-DEC-12,07-DEC-12,10-DEC-12,11-DEC-12,12-DEC-12,13-DEC-12,14-DEC-12,17-DEC-12,18-DEC-12,19-DEC-12,20-DEC-12,21-DEC-12,03-JAN-13,04-JAN-13,05-JAN-13,07-JAN-13,08-JAN-13,09-JAN-13,10-JAN-13,11-JAN-13,14-JAN-13,15-JAN-13,16-JAN-13,17-JAN-13,18-JAN-13,21-JAN-13,22-JAN-13,23-JAN-13,24-JAN-13,25-JAN-13,28-JAN-13,29-JAN-13,30-JAN-13,31-JAN-13,01-FEB-13,04-FEB-13,05-FEB-13,06-FEB-13,07-FEB-13,08-FEB-13,11-FEB-13,12-FEB-13,13-FEB-13,14-FEB-13,15-FEB-13,16-FEB-13,18-FEB-13,19-FEB-13,20-FEB-13,21-FEB-13,22-FEB-13,25-FEB-13,26-FEB-13,27-FEB-13,28-FEB-13,01-MAR-13,02-MAR-13,04-MAR-13,05-MAR-13,06-MAR-13,07-MAR-13,08-MAR-13,11-MAR-13,12-MAR-13,13-MAR-13,14-MAR-13,15-MAR-13,16-MAR-13,17-MAR-13,18-MAR-13,19-MAR-13,20-MAR-13,21-MAR-13,22-MAR-13,25-MAR-13,26-MAR-13,27-MAR-13,28-MAR-13,02-APR-13,03-APR-13,04-APR-13,05-APR-13,08-APR-13,09-APR-13,10-APR-13,11-APR-13,12-APR-13,15-APR-13,16-APR-13,17-APR-13,18-APR-13,19-APR-13,22-APR-13,23-APR-13,24-APR-13,25-APR-13,26-APR-13,29-APR-13,30-APR-13,01-MAY-13,02-MAY-13,03-MAY-13,07-MAY-13,08-MAY-13,09-MAY-13,10-MAY-13,13-MAY-13,14-MAY-13,15-MAY-13,16-MAY-13,17-MAY-13,18-MAY-13,20-MAY-13,21-MAY-13,22-MAY-13,23-MAY-13,24-MAY-13,25-MAY-13,28-MAY-13,29-MAY-13,30-MAY-13,31-MAY-13,03-JUN-13,04-JUN-13,05-JUN-13,06-JUN-13,07-JUN-13,10-JUN-13,11-JUN-13,12-JUN-13,13-JUN-13,14-JUN-13,17-JUN-13,18-JUN-13,19-JUN-13,20-JUN-13,21-JUN-13,24-JUN-13,25-JUN-13,26-JUN-13,27-JUN-13,28-JUN-13,01-JUL-13,02-JUL-13,03-JUL-13,04-JUL-13,05-JUL-13,08-JUL-13,09-JUL-13,10-JUL-13,11-JUL-13,12-JUL-13,15-JUL-13,16-JUL-13,17-JUL-13,18-JUL-13,19-JUL-13,22-JUL-13,23-JUL-13,24-JUL-13,25-JUL-13,26-JUL-13,29-JUL-13,30-JUL-13,31-JUL-13,01-AUG-13,02-AUG-13,05-AUG-13,06-AUG-13,07-AUG-13,08-AUG-13,09-AUG-13,12-AUG-13,13-AUG-13,14-AUG-13,15-AUG-13,16-AUG-13,19-AUG-13,20-AUG-13,21-AUG-13,22-AUG-13,23-AUG-13,27-AUG-13,28-AUG-13,29-AUG-13,30-AUG-13,02-SEP-13,03-SEP-13,04-SEP-13,05-SEP-13,06-SEP-13,09-SEP-13,10-SEP-13,11-SEP-13,12-SEP-13,13-SEP-13,15-SEP-13,16-SEP-13,17-SEP-13,18-SEP-13,19-SEP-13,20-SEP-13,21-SEP-13,23-SEP-13,24-SEP-13,25-SEP-13,26-SEP-13,27-SEP-13,28-SEP-13,30-SEP-13,01-OCT-13,02-OCT-13,03-OCT-13,04-OCT-13,05-OCT-13,07-OCT-13,08-OCT-13,09-OCT-13,10-OCT-13,11-OCT-13,12-OCT-13,14-OCT-13,15-OCT-13,16-OCT-13,17-OCT-13,18-OCT-13,21-OCT-13,22-OCT-13,23-OCT-13,24-OCT-13,25-OCT-13,28-OCT-13,29-OCT-13,30-OCT-13,31-OCT-13,01-NOV-13,04-NOV-13,05-NOV-13,06-NOV-13,07-NOV-13,08-NOV-13,11-NOV-13,12-NOV-13,13-NOV-13,14-NOV-13,15-NOV-13,18-NOV-13,19-NOV-13,20-NOV-13,21-NOV-13,22-NOV-13,25-NOV-13,26-NOV-13,27-NOV-13,28-NOV-13,29-NOV-13,02-DEC-13,03-DEC-13,04-DEC-13,05-DEC-13,06-DEC-13,09-DEC-13,10-DEC-13,11-DEC-13,12-DEC-13,13-DEC-13,16-DEC-13,17-DEC-13,18-DEC-13,19-DEC-13,20-DEC-13,02-JAN-14,03-JAN-14,06-JAN-14,07-JAN-14,08-JAN-14,09-JAN-14,10-JAN-14,13-JAN-14,14-JAN-14,15-JAN-14,16-JAN-14,17-JAN-14,20-JAN-14,21-JAN-14,22-JAN-14,23-JAN-14,24-JAN-14,27-JAN-14,28-JAN-14,29-JAN-14,30-JAN-14,31-JAN-14,03-FEB-14,04-FEB-14,05-FEB-14,06-FEB-14,07-FEB-14,10-FEB-14,11-FEB-14,12-FEB-14,13-FEB-14,14-FEB-14,17-FEB-14,18-FEB-14,19-FEB-14,20-FEB-14,21-FEB-14,24-FEB-14,25-FEB-14,26-FEB-14,27-FEB-14,28-FEB-14,03-MAR-14,04-MAR-14,05-MAR-14,06-MAR-14,07-MAR-14,10-MAR-14,11-MAR-14,12-MAR-14,13-MAR-14,14-MAR-14,17-MAR-14,18-MAR-14,19-MAR-14,20-MAR-14,21-MAR-14,24-MAR-14,25-MAR-14,26-MAR-14,27-MAR-14,28-MAR-14,31-MAR-14,01-APR-14,02-APR-14,03-APR-14,04-APR-14,07-APR-14,08-APR-14,09-APR-14,10-APR-14,11-APR-14,14-APR-14,15-APR-14,16-APR-14,17-APR-14,22-APR-14,23-APR-14,24-APR-14,25-APR-14,28-APR-14,29-APR-14,30-APR-14,01-MAY-14,02-MAY-14,06-MAY-14,07-MAY-14,08-MAY-14,09-MAY-14,12-MAY-14,13-MAY-14,14-MAY-14,15-MAY-14,16-MAY-14,19-MAY-14,20-MAY-14,21-MAY-14,22-MAY-14,23-MAY-14,27-MAY-14,28-MAY-14,29-MAY-14,30-MAY-14,02-JUN-14,03-JUN-14,04-JUN-14,05-JUN-14,06-JUN-14,09-JUN-14,10-JUN-14,11-JUN-14,12-JUN-14,13-JUN-14,16-JUN-14,17-JUN-14,18-JUN-14,19-JUN-14,20-JUN-14,23-JUN-14,24-JUN-14,25-JUN-14,26-JUN-14,27-JUN-14,30-JUN-14,01-JUL-14,02-JUL-14,03-JUL-14,04-JUL-14,07-JUL-14,08-JUL-14,09-JUL-14,10-JUL-14,11-JUL-14,14-JUL-14,15-JUL-14,16-JUL-14,17-JUL-14,18-JUL-14,21-JUL-14,22-JUL-14,23-JUL-14,24-JUL-14,25-JUL-14,28-JUL-14,29-JUL-14,30-JUL-14,31-JUL-14,01-AUG-14,04-AUG-14,05-AUG-14,06-AUG-14,07-AUG-14,08-AUG-14,11-AUG-14,12-AUG-14,13-AUG-14,14-AUG-14,15-AUG-14,18-AUG-14,19-AUG-14,20-AUG-14,21-AUG-14,22-AUG-14,26-AUG-14,27-AUG-14,28-AUG-14,29-AUG-14,01-SEP-14,02-SEP-14,03-SEP-14,04-SEP-14,05-SEP-14]
},
yAxis: {
title: {
text: 'Orders'
}
},
series: [{
data: [543,555,91,488,626,498,639,516,553,687,616,887,514,483,643,443,699,436,131,389,721,475,878,431,409,19,513,841,631,636,286,701,746,574,597,404,561,772,450,367,122,380,552,111,383,460,640,573,423,469,758,680,550,206,350,464,363,702,595,467,646,589,713,409,499,672,682,670,506,581,495,866,602,566,211,477,605,568,809,647,577,791,517,808,319,201,515,831,611,653,431,453,737,510,573,621,163,65,810,870,631,774,648,639,714,697,589,543,395,738,548,883,670,745,629,553,572,676,806,860,605,686,766,693,712,594,657,579,927,867,657,723,643,826,552,824,730,726,910,485,200,715,799,697,879,579,178,705,865,766,532,734,776,700,764,688,781,643,725,818,560,616,865,828,730,548,698,533,796,850,581,590,569,904,746,376,603,940,548,893,486,713,708,744,978,675,642,737,759,632,715,446,992,756,863,507,532,744,812,538,709,577,815,590,831,575,620,768,618,878,621,806,776,814,555,524,958,752,853,774,613,923,720,888,671,6,483,626,639,755,681,325,547,759,788,520,617,458,611,1021,878,909,653,139,515,794,750,708,555,155,549,744,755,997,531,534,801,702,824,550,574,773,829,705,475,603,688,881,805,645,634,873,644,748,619,655,791,655,800,632,585,814,646,743,693,564,823,699,848,539,580,726,587,722,504,562,557,408,443,285,517,299,483,536,610,731,509,554,667,651,570,544,570,650,688,503,598,699,655,676,612,566,632,730,706,707,569,591,885,728,780,504,648,691,840,664,648,746,760,651,629,499,674,843,582,764,745,767,724,661,831,584,788,954,716,690,581,719,926,807,749,454,681,945,798,856,686,603,905,711,845,470,604,845,753,615,767,713,852,546,819,864,831,746,600,862,733,907,717,770,868,789,997,605,886,808,763,652,721,633,698,760,713,681,898,821,819,721,787,738,767,728,540,660,759,767,620,615,687,852,751,727,527,680,733,735,750,623,862,811,845,805,720,772,811,861,755,648,773,799,884,801,652,605,700,884,896,714,877,808,810,669,774,784,766,989,794,741,810,870,818,576,629,676,744,733,679,750,880,878,604,450],
pointStart: 0,
pointInterval
}]
});
</script>
<div id="container" style="height:100%; width:100%;"></div>
Please can someone let me know what I am doing wrong?

I see two issues. First one is categories should be a list of strings, as other people already have mentioned:
categories: ["<?php echo join($data0, '","') ?>"]
Second issue: new Highcharts.Chart() is called before #container exists in the DOM. So you have to wrap the whole JS in a function to call it after DOM has loaded. This little jQuery piece will call the Highcharts function after the DOM has loaded.
<script type="text/javascript">
$(document).ready(function() {
// your JS-code
});
</script>
Btw, both of these errors are logged in the JS console (don't know which browser you're using and thus how to access it).

Your categories must be strings - currently their output as simple characters after eachother.
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'line'
},
xAxis: {
categories: ['01-NOV-12', '02-NOV-12']
},
yAxis: {
title: {
text: 'Orders'
}
},
series: [{
data: [543,555]
}]
});
You can achieve this by changing your categories: [<?php echo join($data0, ',') ?>] to the following:
categories: [<?php echo "'".implode($data0, "','")."'" ?>]
The implode(seperator, array) function will put all of the values in your array right after each other, seperated by the given characters - expanding that to begin and end with an apostrophe will result in your dates being output as string category names.
Also you've got a pointInterval attribute there at the end of your JS without any value, that was also resulting in the failure of the code.
I've deprecated some of your sample data, but you'll get the point.

The categories should be an array of strings
categories: ["<?php echo join('","',$data0) ?>"]

The javascript code isn't executed on document ready event. Thus perhaps the div with id='container' hasn't been created yet and the chart has nowhere to be drawn. Try putting the code after the div like that:
<div id='container'>
</div>
<script>
//highcharts config code
</script>
You could also put the javascript in a anonymous function and execute it after the declaration:
<div id='container'>
</div>
<script>
(function(){
//Highcharts config code here.
} ());
</script>
Also as the other answers are pointing out, the config is in json format so you should use valid JSON values e.g. string, number, true or false, or null.

Try change this line
categories: ["<?php echo implode('","',$data0) ?>"]

Related

I am Trying to make a HighChart's Line Chart Based on the data from the Database.
I Fetched the Data from The Database as I can see that data in the console .
The php Code I Used is :
<?php
$query = "
SELECT YEAR(created_at) AS year,
MONTHNAME(created_at) AS month,
COUNT(*) AS count
FROM users
GROUP BY month ASC ORDER BY created_at ASC
" ;
$result = mysqli_query($conn, $query) ;
while ($row = mysqli_fetch_assoc($result)) {
$data1[] = $row['month'];
$data2[] = $row['count'];
}
?>
Now I Fetched the Data in Highchart's script as Follows :
<script type="text/javascript">
$(function () {
$('#container').highcharts({
chart: {
type: 'line',
},
title: {
text: 'Download Trends'
},
credits: {
enabled: false
},
xAxis: {
categories: ['<?php echo join($data1, "','"); ?>'],
},
yAxis: {
min: 0,
title: {
text: 'No. of Downloads'
}
},
plotOptions: {
column: {
pointPadding: 0.2,
borderWidth: 0
}
},
series: [{
name: 'Qty',
data: ['<?php echo join($data2, "','"); ?>'],
}]
});
});
</script>
I using the container div with id container as follows :
<div id="container"></div>
The Problem is that the data is not showing in correct Manner . its been showing only half of the data as you can see below :
its not showing the Line.
Please Help

Your data serie is made of strings, and Highcharts works with numbers for this kind of graph.
Remove the simple quotes in the data section and it should works :
data: [<?php echo join($data2, ","); ?>]

I am working with chartjs and I am wondering how to give '%' on datalabel of bar chart. My code like below:
data: {
datasets: [{
label: 'My Label',
data: <?php echo json_encode($myData); ?> // contains number like: 77.43, 78.22, etc
datalabels: {
align: 'end',
anchor: 'end'
}
}],
labels: <?php echo json_encode($myLabel); ?>
}
I tried to put string '%' like this data: <?php echo json_encode($myData); ?> + '%' but it returned nothing but a blank page. So anyone can help me to fix this?

You can setting the tooltip in the following way:
data: {
datasets: [{
label: 'My Label',
data: <?php echo json_encode($myData); ?> // contains number like: 77.43, 78.22, etc
datalabels: {
align: 'end',
anchor: 'end'
}
}],
labels: <?php echo json_encode($myLabel); ?>
},
options: {
tooltips: {
callbacks: {
label: function(tooltipItems, data) {
return data.datasets[tooltipItems.datasetIndex].label +': ' + tooltipItems.yLabel + ' %';
}
}
}
}
Reference : http://www.chartjs.org/docs/latest/configuration/tooltip.html

So, I found the solution on Chartjs Official Github Page. I just need to put
formatter: function (value) {
return value + "%";
}
inside datalabels
It acts similar with callback in yAxes option.
See this link

add quotes around php code and end with a comma: data: "<?...?>",

I found this Highchart live data example Live data. I try to use my own data which is come from MySQL so, I change the $y in live-server-data.php to receive the data after use function fetch_assoc().
HTML Code
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Highcharts Example</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.10.1.js"></script>
<script type="text/javascript" src="http://code.highcharts.com/highcharts.js"></script>
</head>
<body>
<div id="container" style="width: 800px; height: 400px; margin: 0 auto"></div>
</body>
</html>
JS
var chart; // global
function requestData() {
$.ajax({
url: 'live-server-data.php',
success: function(point) {
var series = chart.series[0],
shift = series.data.length > 20; // shift if the series is longer than 20
chart.series[0].addPoint(eval(point), true, shift);
// call it again after one second
setTimeout(requestData, 1000);
},
cache: false
});
}
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
defaultSeriesType: 'spline',
events: {
load: requestData
}
},
title: {
text: 'Live random data'
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150,
maxZoom: 20 * 1000
},
yAxis: {
minPadding: 0.2,
maxPadding: 0.2,
title: {
text: 'Value',
margin: 80
}
},
series: [{
name: 'Random data',
data: []
}]
});
});
PHP code
<?php
$conn = new mysqli($servername, $username, $password, $dbname);
if($conn->connect_error){
die("Connection failed: ".$conn->connect_error);
}
$sql_1 = "SELECT SensorData AS power FROM $tbname where SensorID = '1'";
$result_1=$conn->query($sql_1);
while($row = $result_1->fetch_assoc()){
$y = $row['power'];
}
$conn->close();
header("Content-type: text/json");
multiplied by 1000.
$x = time() * 1000;
$ret = array($x, $y);
echo json_encode($ret);
?>
The graph is moved but it not shows any data.
So I press F12 on Chrome Browser and I found this thing.
I think "14.600" may be the cause of my problem. Please tell me if you know the solution to solve this problem. Thank you so much.

I think the graph required an array that contains numeric values in it. In your case one value is numeric but another one is string so convert all the values to numeric i.e. either integer or float. (Float is preferred here) and pass that array to the graph.

Im new in Js and Jquery and I have a curiosity about the Jquery Chart that is free to download and I want to make the data inside to be coming from the database to make it dynamic but somehow I find it difficult to loop it in.
here is my sample code, I used PHP to get the database and pass it on a JS variable
<!DOCTYPE HTML>
<html>
<head>
<?php
$link = mysqli_connect("localhost","root","","raksquad_centralized") or die("Error " . mysqli_error($link));
if($link->connect_error){
printf("Connect failed: %s\n", $mysqli->connect_error);
exit();
}
$query = "SELECT * FROM raksquad_centralized.grade";
$result = $link->query($query);
$subject_id= array();
$genAve = array();
while($row = mysqli_fetch_array($result)){
$subject_id[] = $row['subject_id'];
$genAve[]= $row['gen_ave'];
}
?>
<script type="text/javascript">
window.onload = function () {
var DataXAxis = <?php echo json_encode($subject_id); ?>; // X axis that corresponds to students
var DataYAxis = <?php echo json_encode($genAve); ?>; // Y axis that corresponds to grades
var chart = new CanvasJS.Chart("chartContainer",
{
title:{
text: "Top Students"
},
animationEnabled: true,
axisY: {
title: "Grades"
},
axisX: {
title: "Students"
},
legend: {
verticalAlign: "bottom",
horizontalAlign: "center"
},
theme: "theme2",
data: [
{
type: "column",
showInLegend: true,
legendMarkerColor: "grey",
legendText: "General Average",
dataPoints: [
//the area to loop with the value of DataXAxis, DataYAxis
{y: 98, label: "MT1234" },
{y: 72, label: "MT1236"} //corresponds to the barcharts
]
}
]
});
chart.render();
}
</script>
<script type="text/javascript" src="./canvasjs.min.js"></script>
</head>
<body>
<div id="chartContainer" style="height: 300px; width: 100%;">
</div>
</body>
</html>
appreciate for the help, useful for learning :)

I just use a php code to fetch the data, then json encode it.
On the script use json parse

i have some problem with this.
i want to make a barchart with xAxis = day from 1-31 ( for this month)
this is my table: http://prntscr.com/4xaljv
case : i have average price Execpt the promo price : 1.000.000
how can i use that data to make a barchart like this one :
http://prntscr.com/4xal4p
anyone can help or make some sugestion about this case?
im trying using high chart and make some problem with value of each date.
this is my code:
<script type="text/javascript">
var chart1; // globally available
$(document).ready(function() {
chart1 = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'column'
},
title: {
enabled: false
},
xAxis: {
categories: ['1']
},
legend: {
enabled: false
},
yAxis: {
title: {
text: 'Jumlah Penduduk'
}
},
series:
[
<?php
for ($day=1; $day <= $num ; $day++) {
while($k<count($tglevent)){
if($day==$tglevent[$k]){
$promo = $hargapromo[$k];
break;
}
$k++;
}
if ($hargapromo[$k] != NULL || $hargapromo[$k] > 0) {
$harga_promo = ($promo+$data_rata2->average)/2;
}else{
$harga_promo = $data_rata2->average;
}
?>
{
name: [<?= $day ?>],
data: [<?= $data_rata2->average ?>]
},
<?php
}
?>
]
});
});
</script>

Your SQL should be something like this:
SELECT date, avg(price) FROM myTable GROUP BY 1
This will give you the average prive per day, no need (more speed) to calculate it in your program.
Note that you can use MySQLs data-Functions as well:
SELECT year(date), month(date), day(date), avg(price) FROM myTable GROUP BY 1,2,3