Highchart Pie chat not display Codeigniter - highcharts

Question

I'am trying to use Pie chart of highchart with Codeigniter for the first time. I can't display the graph with my codes below. I can't pass the json to the graph data to display the pie chart.
Any help is greatly appreciated.
Thanks
The query result in json format shows like this :
[{"sexo":"Feminino","total":"4"},{"sexo":"Masculino","total":"2"}]
Controller
public function charCont()
{
$query = $this->model_admin->getPieChat();
$data['query']=json_encode($query);
$this->load->view('chart',$data);
}
View
<div id="container" style="min-width: 310px; height: 400px; max-width: 600px; margin: 0 auto"></div>
Highcharts.chart('container', {
chart: {
plotBackgroundColor: null,
plotBorderWidth: null,
plotShadow: false,
type: 'pie'
},
title: {
text: 'Test'
},
tooltip: {
pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
},
plotOptions: {
pie: {
allowPointSelect: true,
cursor: 'pointer',
dataLabels: {
enabled: true,
format: '<b>{point.name}</b>: {point.percentage:.1f} %',
style: {
color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black'
}
}
}
},
series: [{
name: 'Brands',
colorByPoint: true,
data:<?=$query?>
}]
});

Answer 1

You need preprocess your data to the format required by Highcharts:
var data = [{
"sexo": "Feminino",
"total": "4"
}, {
"sexo": "Masculino",
"total": "2"
}];
data = data.map(function(obj) {
return {
name: obj.sexo,
y: Number(obj.total)
}
});
Highcharts.chart('container', {
...,
series: [{
...
data: data
}]
});
Live demo: http://jsfiddle.net/BlackLabel/yfLovx8b/
API Reference: https://api.highcharts.com/highcharts/series.pie.data