Hi there -
Here is what I receive from my db (which I think is fine):
{"cols":[{"label":"priority","type":"string"},{"label":"num_count","type":"number"}],"rows":[{"c":[{"v":"High"},{"v":"4"}]},{"c":[{"v":"Low"},{"v":"3"}]},{"c":[{"v":"Medium"},{"v":"7"}]},{"c":[{"v":"Urgent"},{"v":"2"}]}]}
But when I run this (posted below), I get the following error message: *Table
has no columns. *Could someone help me out? Thank you!
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns="http://www.w3.org/1999/xhtml";>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Sample Pie Chart</title>
<script type="text/javascript"
src="https://www.google.com/jsapi";></script>
<script type="text/javascript"
src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var jsonData = $.ajax({
url: "data-file.php",
dataType:"json",
async: false
}).responseText;
var data = new google.visualization.DataTable(<?php echo
json_encode($table); ?>);
var chart = new
google.visualization.PieChart(document.querySelector('#chart_div'));
chart.draw(data, {
// put the chart options in here
height: 800,
width: 600
});
}
google.load('visualization', '1', {packages: ['corechart'], callback:
drawChart});
</script>
</head>
<body>
<p>Pie Chart </p>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
</body>
</html>
On Saturday, November 16, 2013 5:00:15 PM UTC-5, Hugo Mendoza wrote:
>
> Hi there -
>
> I figured out how to put my data into a JSON format using PHP and MySQL,
> see below. Now, could someone please help me create, say, a pie chart with
> Google Charts. I have not done this before, and I could use some help
> creating it.
>
> <?php
> // Connect to MySQL
>
> include ("./mylibrary/login.php");
> login();
>
> // Fetch the data
> $query = "
> SELECT priority, COUNT(*) AS num_count\n"
> . " FROM issue\n"
> . " GROUP BY priority ";
>
> $result = mysql_query( $query );
>
> // All good?
> if ( !$result ) {
> // Nope
> $message = 'Invalid query: ' . mysql_error() . "\n";
> $message .= 'Whole query: ' . $query;
> die( $message );
> }
>
> // Print out rows
> $prefix = '';
> echo "[\n";
> while ( $row = mysql_fetch_assoc( $result ) ) {
> echo $prefix . " {\n";
> echo ' "priority": "' . $row['priority'] . '",' . "\n";
> echo ' "num_count": ' . $row['num_count'] . "\n";
> echo " }";
> $prefix = ",\n";
> }
> echo "\n]";
>
> ?>
>
> Thank you,
> Hugo
>
>
--
You received this message because you are subscribed to the Google Groups
"Google Visualization API" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/google-visualization-api.
For more options, visit https://groups.google.com/groups/opt_out.
