Highcharts饼图数据通过php设置格式

Question

Am using Highcharts for pie chart. Below is the JS code for it :

$(document).ready(function () {
var chart;

var graphData = $("#graphContentdata").val();
console.log(graphData);
var options = {
        chart: {
            renderTo: 'graphContainer',
            plotBackgroundColor: null,
            plotBorderWidth: null,
            plotShadow: false
        },
        title: {
            text: 'SOV'
        },
        tooltip: {
            formatter: function() {
                return '<b>'+ this.point.name +'</b>: '+ this.percentage +' %';
            }
        },
        plotOptions: {
            pie: {
                allowPointSelect: true,
                cursor: 'pointer',
                dataLabels: {
                    enabled: true,
                    color: '#000000',
                    connectorColor: '#000000',
                    formatter: function() {
                        return '<b>'+ this.point.name +'</b>: '+ this.percentage +' %';
                    }
                }
            }
        },
        series: [{
            type: 'pie',
            name: 'Browser share',
           data: []
        }]
    }

    chart = new Highcharts.Chart(options);
    chart.series[0].setData("["+graphData+"]");

 });

And PHP Code for generating the Data :

foreach ($sumArray as $key=>$value)
    {
        $sumArray[$key] = array_sum($value);
        $percent = (number_format(($sumArray[$key]/$sovGrandTotal)*100,2));

        $data[] =  "['$key', $percent]";            
    }
    $data = join(",", $data);

?>               
  <input type='hidden' id='graphContentdata' value="<?php echo $data; ?>">  

The Data format Am getting is :

['www.quora.com', 0.23],['www.slideshare.net', 0.25],['me', 99.52]

Problem is :

chart.series[0].setData("["+graphData+"]");

not creating graph, but if i copy paste the value from console at palce of graphData variable, its working like:

chart.series[0].setData([['www.quora.com', 0.23],['www.slideshare.net', 0.25],['me', 99.52]]);

is working.

What's the mistake am doing here???

Answer 1

The problem is your are passing your data as a String when you are using

chart.series[0].setData("["+graphData+"]");

You need to set your data as an Array . You could do that by converting your String using eval :

chart.series[0].setData(eval("["+graphData+"]"));

You could also use jQuery to convert your String to JSON , but in that case you must use double quotes to open and close Strings:

$.parseJSON("[[\"www.quora.com\", 0.23],[\"www.slideshare.net\", 0.25],[\"me\", 99.52]]");