Hi Andrew,
I tried all the above example to make an annotation chart working, but I
miserably failed to have it working...
I always get this error, and even if mysql_num_rows() is deprecated I
cannot find a way to have it replaced
*Warning*: mysql_num_rows() expects parameter 1 to be resource, object
given in */Applications/XAMPP/xamppfiles/htdocs/server1/Result_console4.php* on
line *11*
Are you able to provide me some help?
Hope you can help me..
many thanks.
Here is my entire code of my php page.
<?php
//DB connection parameters
require_once("mysql_connect.php");
$result = mysqli_query($con,"select date,value1,value2 from DATABASE");
if ($result !== false) {
$num=mysql_num_rows($result);
$i=0;
echo"";
$output = Array();
while ($i < $num) {
$DateTimeArray=explode(' ', mysql_result($result,$i,"date"));
$MYvalue1=mysql_result($result,$i,"value1");
$MYvalue2=mysql_result($result,$i,"value2");
$dateArray = explode('-', $DateTimeArray[0]);
$year = $dateArray[0];
$month = $dateArray[1] - 1; // adjust for javascript's 0-indexed months
$day = $dateArray[2];
$timeArray = explode(':', $DateTimeArray[1]);
$hours = $timeArray[0];
$minutes = $timeArray[1];
$seconds = $timeArray[2];
$output[] = "[new Date($year, $month, $day, $hours, $minutes, $seconds),
$MYvalue1, $MYvalue2]";
$i++;
}
}
?>
<html>
<head>
</head>
<script type='text/javascript' src='http://www.google.com/jsapi'
></script>
<script type='text/javascript'>
google.load('visualization', '1.1', {'packages':['annotationchart']});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('datetime', 'Date');
data.addColumn('number', 'value1');
data.addColumn('number', 'value2');
data.addRows([ <?php echo implode(',', $output); ?>]);
var chart = new
google.visualization.AnnotationChart(document.getElementById('chart_div'));
var options = {
displayAnnotations: true,
};
chart.draw(data, options);
}
</script>
<body>
Graph should be here.
<div id='chart_div' style='width: 900px; height: 500px;'></div>
</body>
</html>
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