Hi there,
Not really a Script shark yet. PHP is more my game..
I want to show a google bar chart from a mysqli database.
Here is my code..:
<?PHP
include "config.php";
for($i=0; $i<=6; $i++){
$dato=date('Y-m-d',strtotime("-".$i." days"));
$hent=mysqli_query($con,"SELECT * FROM WithdrawalLog WHERE tid LIKE
'%".$dato."%' AND Location='Location1' ORDER BY id DESC LIMIT 0, 1000");
while($row=mysqli_fetch_array($hent)){
$amount=abs($row["antalLiter"]);
$loction1=$location1+$amount;
}
$hent=mysqli_query($con,"SELECT * FROM WithdrawalLog WHERE tid LIKE
'%".$dato."%' AND Location='Location2' ORDER BY id DESC LIMIT 0, 1000");
while($row=mysqli_fetch_array($hent)){
$amount=abs($row["antalLiter"]);
$location1=$location1+$amount;
}
$resultat .= "['".$dato."', '".$location1."','".$location2."'],";
$location1=0;
$location2=0;
}
?>
<html>
<head>
<script type="text/javascript"
src="https://www.gstatic.com/charts/loader.js";></script>
<script type="text/javascript">
google.charts.load('current', {'packages':['bar']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Dato', 'Location1', 'Location2'],
<?PHP
echo $resultat;
?>
]);
var options = {
chart: {
title: 'Last 7 days',
subtitle: 'Date and location',
}
};
var chart = new
google.charts.Bar(document.getElementById('columnchart_material'));
chart.draw(data, google.charts.Bar.convertOptions(options));
}
</script>
<meta http-equiv="refresh" content="60" >
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<div id="columnchart_material" style="width: 90%; margin:auto; height:
500px;"></div>
</body>
</html>
Here is how the chart is processed..
<https://lh3.googleusercontent.com/-XluKSMt_pls/WcOJe070QGI/AAAAAAAAAAM/T50rdnJ_Q2cDh_SN5jp6GubE8eItweomQCLcBGAs/s1600/Udklip.PNG>
My problem is that the chart seems to show the first 2 entrys as negative
numbers although they are positive. (when i mouseover the column it even
shows a positive number).
How can i alter this in the code to get a correct vertical left side scale ?
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