我创建了一个管理面板,我想显示柱形图和饼图。我做了部分代码和我的饼图工作,但colum图表没有显示任何结果或没有错误。
我的代码如下: -
<?php
$serverName = "localhost";
$connectionInfo = array( "Database"=>"TripBrip", "UID"=>"", "PWD"=>"");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
?>
<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['date_of_journey', 'Booking'],
<?php
$query = "SELECT count(booking_id) AS count, date_of_journey FROM tbl_booking GROUP BY date_of_journey ORDER BY date_of_journey";
$exec = sqlsrv_query($con,$query);
while($row = sqlsrv_fetch_array($exec)){
echo "['".$row['date_of_journey']."',".$row['count']."],";
}
?>
]);
var options = {
title: 'Date wise booking'
};
var chart = new google.visualization.ColumnChart(document.getElementById("columnchart"));
chart.draw(data, options);
}
</script>
</head>
<body>
<h3>Column Chart</h3>
<div id="columnchart" style="width: 900px; height: 500px;"></div>
</body>
</html>
任何人都可以帮助我如何解决这个问题