我是网络编程新手，我有个人项目来跟踪支出。 开门见山，我的数据库数据包含本月和上个月的总支出。我可以手动显示它(通过 echo)。但我无法将值传递给 highcharts 系列。由于有许多小的独立数据，我想使用 php/mysql 而不是 json 手动填充它。
Graph2.php
<?php
$mysql_hostname = "localhost";
$mysql_user = "root";
$mysql_password = "mypassword";
$mysql_database = "mytraining";
$bd = mysqli_connect($mysql_hostname, $mysql_user, $mysql_password, $mysql_database);
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query2 = "select year(date) as y, month(date) as m, sum(amount) as p from expenditure_bak group by year(date), month(date) order by m ASC";
$sth = mysqli_query($bd, $query2);
$rows = array();
$rows['name'] = 'Revenue';
while($r = mysqli_fetch_array($sth)) {
$rows['data'][]= round($r['p'],2);
}
//echo join($rows['data'], ','); //able to display correct value 660.2,60
?>
PopupGraph.html
<?php
include('graph2.php');
?>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Monthly Expenditure</title>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<style type="text/css">
${demo.css}
</style>
<script type="text/javascript">
$(function () {
$('#container').highcharts({
title: {
text: 'Monthly Expenditure'
},
xAxis: {
categories: ['Jun', 'Jul']
},
yAxis: [{
min: 0,
title: {
text: ''
}
}, {
min: 0,
opposite: false, //optional, you can have it on the same side.
title: {
text: 'Average'
}
}
],
labels: {
items: [{
html: 'Monthly Expenditure',
style: {
left: '50px',
top: '18px',
color: (Highcharts.theme && Highcharts.theme.textColor) || 'black'
}
}]
},
tooltip: {
formatter: function () {
return '<b>' + this.x + '</b><br/>' +
this.series.name + ': ' + this.y
/*+ '<br/>' + 'Total: ' + this.point.stackTotal*/;
}
},
series: [{
type: 'spline',
name: 'Average',
yAxis: 1, //to make y axis
//data: [660.2,60], //able to show correct graph with static input
data: [<?php echo join($rows[data], ',') ?>],
marker: {
lineWidth: 2,
lineColor: Highcharts.getOptions().colors[3],
fillColor: 'white'
}
}]
});
});
</script>
</head>
<body>
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>
</body>
</html>
那么，在 highcharts 系列的 data: [] 中放置的正确代码是什么？
输出应类似于 JSFiddle但显然使用数据库中的动态数据。
最后，我想显示类似的内容 Expenditure Tracking
最佳答案
您可能需要对数据进行编码。我建议您看一下这里的答案 Pass a PHP array to a JavaScript function 。基于此，您应该能够执行以下操作:
JSON.parse(<?php echo json_encode(join($rows[data], ',')) ?>);
那么你应该能够得到你想要的结果。您可能不需要 JSON.parse。
关于php - 使用 MySQL 填充 highcharts 数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38157082/