Thank you for all the help.
I am still having some problems, but I think that I am almost there.
Here is the code to my data-file.php (see below), which returns this JSON
format:
{"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}]}]}
<?php
include ("./mylibrary/login.php");
login();
$query = "
SELECT priority, COUNT(*) AS num_count\n"
. " FROM issue\n"
. " GROUP BY priority ";
$result = mysql_query( $query );
if ( !$result ) {
$message = 'Invalid query: ' . mysql_error() . "\n";
$message .= 'Whole query: ' . $query;
die( $message );
}
$table = array(
'cols' => array(
array('label' => 'priority', 'type' => 'string'),
array('label' => 'num_count', 'type' => 'number')
),
'rows' => array()
);
while ($row = mysql_fetch_assoc($result)) {
$table['rows'][] = array(
'c' => array(
array('v' => $row['priority']),
array('v' => (int) $row['num_count']) //Using this because PHP server with
host is out of date
)
);
}
echo json_encode($table);
?>
Here is my other file, but it does not display a chart and am not getting
any errors (I tried both html and php extensions with no luck):
<!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">
google.load("visualization", "1", {packages:["corechart"]});
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
});
}
</script>
</head>
<body>
<p>Pie Chart Sample</p>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
</body>
</html>
Thank you in advance for any help that you can provide.
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
>
>
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