why I cannot view the barchart in localhost with chart js?

$sum_1, “label” => “Jan”),
array(“y” => $sum_2, “label” => “Feb”),
array(“y” => $sum_3, “label” => “Mac”),
array(“y” => $sum_4, “label” => “Apr”),
array(“y” => $sum_5, “label” => “May”),
array(“y” => $sum_6, “label” => “Jun”),
array(“y” => $sum_7, “label” => “Jul”),
array(“y” => $sum_8, “label” => “Aug”),
array(“y” => $sum_9, “label” => “Sep”),
array(“y” => $sum_10, “label” => “Oct”),
array(“y” => $sum_11, “label” => “Nov”),
array(“y” => $sum_12, “label” => “Dec”),
);
?>

$(function () {
var chart1 = new CanvasJS.Chart(“chartContainer1”,{
theme: “light3”,
animationEnabled: true,
title: {
text: “Monthly Electricity Bill”
},
axisY: {
title: “Total Amount (RM)”
},
data: [{
type: “column”,
showInLegend: true,
legendMarkerColor: “grey”,
legendText: “Month”,
dataPoints:
}]
});

chart1.render();

});