สอบถามผู้รู้หน่อย ครับ......ดึกข้อมูล ในฐานมาแสดงเป็น กราฟ ครับ

<!-- Connect Database --> ตอนดึงข้อมูลจากฐานข้อมูล
<?php
	include("_stk_connect.php");
	$sql = "SELECT ItemName, Value FROM `tb_items` ORDER BY Value DESC LIMIT 15" ;
	$result = mysqli_query($conn,$sql);
	
	if(mysqli_num_rows( $result)>0 ) {
		
		while($row = mysqli_fetch_assoc($result)) {
			$items[] = $row['ItemCode'];
			$lebels[] = $row['ItemName'];
			$data[] = $row['Value'];
		}
	}										
?>

<script>
var chart = AmCharts.makeChart("chartdiv", {
    "theme": "light",
    "type": "serial",
    "startDuration": 2,
    "dataProvider": [{
        "country": <?=json_encode($lebels[0])?>,
        "visits": <?=json_encode($data[0], JSON_NUMERIC_CHECK);?>,
        "color": "#FF0F00"
    }, {
        "country": <?=json_encode($lebels[1])?>,
        "visits": <?=json_encode($data[1], JSON_NUMERIC_CHECK);?>,
        "color": "#FF6600"
    }, {
        "country": <?=json_encode($lebels[2])?>,
        "visits": <?=json_encode($data[2], JSON_NUMERIC_CHECK);?>,
        "color": "#FF9E01"
    }, {
        "country": <?=json_encode($lebels[3])?>,
        "visits": <?=json_encode($data[3], JSON_NUMERIC_CHECK);?>,
        "color": "#FCD202"
    }, {
        "country": <?=json_encode($lebels[4])?>,
        "visits": <?=json_encode($data[4], JSON_NUMERIC_CHECK);?>,
        "color": "#F8FF01"
    }, {
        "country": <?=json_encode($lebels[5])?>,
        "visits": <?=json_encode($data[5], JSON_NUMERIC_CHECK);?>,
        "color": "#B0DE09"
    }, {
        "country": <?=json_encode($lebels[6])?>,
        "visits": <?=json_encode($data[6], JSON_NUMERIC_CHECK);?>,
        "color": "#04D215"
    }, {
        "country": <?=json_encode($lebels[7])?>,
        "visits": <?=json_encode($data[7], JSON_NUMERIC_CHECK);?>,
        "color": "#0D8ECF"
    }, {
        "country": <?=json_encode($lebels[8])?>,
        "visits": <?=json_encode($data[8], JSON_NUMERIC_CHECK);?>,
        "color": "#0D52D1"
    }, {
        "country": <?=json_encode($lebels[9])?>,
        "visits": <?=json_encode($data[9], JSON_NUMERIC_CHECK);?>,
        "color": "#2A0CD0"
    }, {
        "country": <?=json_encode($lebels[10])?>,
        "visits": <?=json_encode($data[10], JSON_NUMERIC_CHECK);?>,
        "color": "#8A0CCF"
    }],
    "valueAxes": [{
        "position": "left",
        "axisAlpha":0,
        "gridAlpha":0
    }],
    "graphs": [{
        "balloonText": "[[category]]: <b>[[value]]</b>",
        "colorField": "color",
        "fillAlphas": 0.85,
        "lineAlpha": 0.1,
        "type": "column",
        "topRadius":1,
        "valueField": "visits"
    }],
    "depth3D": 40,
	"angle": 30,
    "chartCursor": {
        "categoryBalloonEnabled": false,
        "cursorAlpha": 0,
        "zoomable": false
    },
    "categoryField": "country",
    "categoryAxis": {
        "gridPosition": "start",
        "axisAlpha":0,
        "gridAlpha":0

    },
    "export": {
    	"enabled": true
     }

}, 0);
</script>
<!-- Chart code -->