Donut chart in PHP

    var employees = $("#employees").val();
    //var fairs     = $("#fairs").val();

    $.ajax({

        url     : 'php_script/chart_values.php',
        method  : 'POST',
        data    : {employees:employees},

        success : function(data){
            $("#page_content").fadeIn();
            $("#bar_chart_div").fadeOut();
            var obj = JSON.parse(data);

            var a = obj[0]; // labele data "Won","Contracted","Intersted"
            var b = obj[1]; // label values "100","90","70"
            var labeldata=[];
            for( i=0; i<a.length;i++){ 

                labeldata.push({label:a[i],y:parseInt(b[i]),legendText:a[i]});
            }

            debugger;
           console.log(JSON.stringify(labeldata));

            var chart = new CanvasJS.Chart("chartContainer", {
                title: { 

                    fontSize:15
                }, 
                axisY: { 
                    title: "Products in %" 
                }, 
                legend :{ 
                    verticalAlign: "center", 
                    horizontalAlign: "right" 
                },
                data: [{
                type: "pie", 
                showInLegend: true, 
                toolTipContent: "{label} <br/> {y} ", 
                indexLabel: "{y} %", 
                dataPoints: labeldata



        }] 
}); 
chart.render();



        }

    });

});

Source: stackoverflow.com

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