我正在使用High Charts;特别是这个例子here
我正在尝试从jSON响应中设置我的系列和x轴数据。
我提取的数据是本月的数据。但是,有几个月没有数据。因此,如果我对X轴进行了硬编码,然后jSON中缺少一个月的数据,则所有列都将关闭。
以下是我的jSON数据示例:
[
{
"month": "6",
"year": "2014",
"grandTotal": "1774",
"booksTotal": "1288",
"tuitionTotal": "486"
},
{
"month": "7",
"year": "2014",
"grandTotal": "1488",
"booksTotal": "842",
"tuitionTotal": "986"
},
{
"month": "8",
"year": "2014",
"grandTotal": "253",
"booksTotal": "143",
"tuitionTotal": "110"
}
]
如您所见,从第6个月(5月)开始只有3个月的数据 - 图表将是5月到8月。
所以我需要弄清楚如何让x轴也使用JSON,然后以一种知道基于系列数据显示几个月的方式对其进行格式化。
这是我生成上面提到的jSON响应的代码。
$objDB = new DB;
$xml = $objDB->setStoredProc('tuitionFetchStats')
->setParam("action", $type)
->execStoredProc()
->parseXML();
//Loop over the XML response
foreach ($xml->dataSet as $data) {
//Define the output
$grandTotal = (string) $data->grandTotal;
$booksTotal = (string) $data->totalBooks;
$tuitionTotal = (string) $data->tuitionTotal;
$month = (string) $data->reimbursementMonth;
$year = (string) $data->reimbursementYear;
switch($type){
case 'y2d':
//Add the results to an array
$stats[] = array(
'month' => $month,
'year' => $year,
'grandTotal' => $grandTotal,
'booksTotal' => $booksTotal,
'tuitionTotal' => $tuitionTotal
);
break;
default:
//
break;
}
}
//Set the content type to JSON for jquery to understand
header('Content-Type: text/javascript');
//Print the response to the page
print json_encode($stats);
我需要以一种方式格式化我的jSON,我可以使用它来创建X轴值和系列数据。例如,我可以遍历"父母"在jSON中创建类别,然后我可以遍历这些父类中的所有值来为系列创建数据。
以下是所提供数据的所需结果:
$('#yearToDate').highcharts({
chart: {
type: 'column'
},
title: {
text: 'Projected Tuition'
},
subtitle: {
text: 'Current Year'
},
xAxis: {
categories: [
'Jun',
'Jul',
'Aug'
]
},
yAxis: {
min: 0,
title: {
text: 'Dollar Amount'
}
},
tooltip: {
headerFormat: '<span style="font-size:10px">{point.key}</span><table>',
pointFormat: '<tr><td style="color:{series.color};padding:0">{series.name}: </td>' +
'<td style="padding:0"><b>${point.y:.1f}</b></td></tr>',
footerFormat: '</table>',
shared: true,
useHTML: true
},
plotOptions: {
column: {
pointPadding: 0.2,
borderWidth: 0
}
},
series: [{
name: 'Courses',
data: [{'486','986', '110'}]
}, {
name: 'Books',
data: [{'1228', '842', '143'}]
}, {
name: 'Total Cost',
data: [{'1774', '986', '110'}]
}]
});
我只需要通过动态获取所有数据,就好像我有9月的信息一样,我还需要在X轴上显示9月。
答案 0 :(得分:1)
$series = array();
foreach ($xml->dataSet as $data) {
//Define the output
$grandTotal = (string) $data->grandTotal;
$booksTotal = (string) $data->totalBooks;
$tuitionTotal = (string) $data->tuitionTotal;
$month = (string) $data->reimbursementMonth;
$year = (string) $data->reimbursementYear;
$courses['name'] = 'courses';
$courses['data'][] = $grandTotal;
$books['name'] = 'books';
$books['data'][] = $booksTotal;
$total_cost['name'] = 'Total cost';
$total_cost['data'][] = $tuitionTotal;
$monthAxis[] = $month;
}
print json_encode(array('series'=>$series, 'categories' =>$monthAxis));
答案 1 :(得分:0)
只需将空值放在您想要跳过的位置......
{
"month": "5",
"year": "2014",
"grandTotal": null,
"booksTotal": null,
"tuitionTotal": null
},