未显示超过 1 个系列的图表显示

Question

我正在使用 JSON 从数据库中获取数据，但是当我尝试将 2 个系列的数据显示到高图表时，图表的结果没有正确显示。

获取数据.php

while($row = sqlsrv_fetch_array($weekly2)) {
$BF1[] = $row['VoltageA'];
$BF2[] = $row['VoltageB'];
$wv3[] = $row['VoltageC'];
$wi4[] = $row['IA'];
$wi5[] = $row['IB'];
$wi6[] = $row['IC'];
}
echo json_encode(array($BF1, $BF2));

我从json_encode获得的数据：

[[0.80299997329712,0.80599999427795,0.80599999427795,0.80800002813339,0.80800002813339,0.80699998140335,0.80099999904633,0.80099999904633,0.78700000047684,0.77799999713898],[0.80599999427795,0.80900001525879,0.80800002813339,0.81000000238419,0.80900001525879,0.81000000238419,0.80299997329712,0.80299997329712,0.78899997472763,0.78299999237061]]

脚本

$.when(
$.getJSON('fetchdata.php')).then(function(BF1, BF2) {  
Highcharts.chart('container', {
chart: {
type: 'line'
},
title: {
text: 'Daily Voltage'
},
subtitle: {
text: ''
},
xAxis: {
categories: ['12:00 AM', '1:00 AM', '2:00 AM', '3:00 AM', '4:00 AM', '5:00 AM', '6:00 AM', '7:00 AM', '8:00 AM', '9:00 AM', '10:00 AM', '11:00 AM','12:00 PM', '1:00 PM', '2:00 PM', '3:00 PM', '4:00 PM', '5:00 PM', '6:00 PM', '7:00 PM', '8:00 PM', '9:00 PM', '10:00 PM', '11:00 PM']
},
yAxis: {
title: {
text: 'FEEDER 1'
}
},
plotOptions: {
line: {
dataLabels: {
enabled: true
},
enableMouseTracking: true
}
},
series: [{
name: 'Voltage A',
data: BF1
},
{
name:'Voltage B',
data: BF2
}]
});
});

显示的结果

Answer 1

由于错误地使用了$.getJSON()调用而出现问题。您已经将两个参数传递给了.then()中定义的函数，但应该只是一个，因为您收到了包含两个数组的数组，例如：

$.getJSON('fetchdata.php')).then(function(data) {
...
}

然后，您将能够在系列定义中引用data[0]和data[1]：

series: [{
name: 'Voltage A',
data: data[0]
},
{
name: 'Voltage B',
data: data[1]
}
]

现场示例：https://jsfiddle.net/abx6cepw/

亲切问候！