canvasJS在PHP中如何制作动态图表

今天就跟大家聊聊有关canvasJS在PHP中如何制作动态图表,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。

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CanvasJS是一个JavaScript库,用于轻松为网页创建其他类型的图表。例如条形图,饼图,柱形图,面积图,折线图等。

让我们以需要创建一个图表的示例为例,在该图表中我们可以显示每月销售和购买的产品。我们将考虑两个数组,我们也可以从数据库中考虑它们。一旦我们从数据库中获取数据并将其存储在数组中,它就可以使用canvasJS轻松绘制动态图形。

创建一个文件并将其保存在项目文件夹中。文件名chart_sample.php包含数组形式的数据,其中第一个数组代表购买的产品,第二个数组代表sols产品列表。现在,使用canvasJS绘制图形。

例如:

<?php 
// First array for purchased product 
$purchased= array(10, 15, 19, 0, 5, 7, 0, 0, 12, 13, 10, 1);

// Second array for sold product 
$sold= array(7, 12, 14, 0, 3, 7, 0, 0, 10, 7, 5, 0);

// Data to draw graph for purchased products 
$dataPoints = array( 
  array("label"=> "Jan", "y"=> $purchased[0]), 
  array("label"=> "Feb", "y"=> $purchased[1]), 
  array("label"=> "March", "y"=> $purchased[2]), 
  array("label"=> "April", "y"=> $purchased[3]), 
  array("label"=> "May", "y"=> $purchased[4]), 
  array("label"=> "Jun", "y"=> $purchased[5]), 
  array("label"=> "July", "y"=> $purchased[6]), 
  array("label"=> "Aug", "y"=> $purchased[7]), 
  array("label"=> "Sep", "y"=> $purchased[8]), 
  array("label"=> "Oct", "y"=> $purchased[9]), 
  array("label"=> "Nov", "y"=> $purchased[10]), 
  array("label"=> "Dec", "y"=> $purchased[11]) 
);

// Data to draw graph for sold products 
$dataPoints2 = array( 
  array("label"=> "Jan", "y"=> $sold[0]), 
  array("label"=> "Feb", "y"=> $sold[1]), 
  array("label"=> "March", "y"=> $sold[2]), 
  array("label"=> "April", "y"=> $sold[3]), 
  array("label"=> "May", "y"=> $sold[4]), 
  array("label"=> "Jun", "y"=> $sold[5]), 
  array("label"=> "July", "y"=> $sold[6]), 
  array("label"=> "Aug", "y"=> $sold[7]), 
  array("label"=> "Sep", "y"=> $sold[8]), 
  array("label"=> "Oct", "y"=> $sold[9]), 
  array("label"=> "Nov", "y"=> $sold[10]), 
  array("label"=> "Dec", "y"=> $sold[11]) 
);

?>
<!DOCTYPE HTML> 
<html> 
<head>  
  <script src="https://canvasjs.com/assets/script/canvasjs.min.js"> 
</script> 
  <script> 
    window.onload = function () {

      var chart = new CanvasJS.Chart("chartContainer", { 
        animationEnabled: true, 
        title:{ 
          text: "Monthly Purchased and Sold Product"
        },   
        axisY: { 
          title: "Purchased", 
          titleFontColor: "#4F81BC", 
          lineColor: "#4F81BC", 
          labelFontColor: "#4F81BC", 
          tickColor: "#4F81BC"
        }, 
        axisY2: { 
          title: "Sold", 
          titleFontColor: "#C0504E", 
          lineColor: "#C0504E", 
          labelFontColor: "#C0504E", 
          tickColor: "#C0504E"
        },   
        toolTip: { 
          shared: true 
        }, 
        legend: { 
          cursor:"pointer", 
          itemclick: toggleDataSeries 
        }, 
        data: [{ 
          type: "column", 
          name: "Purchased", 
          legendText: "Purchased", 
          showInLegend: true, 
          dataPoints:<?php echo json_encode($dataPoints, 
              JSON_NUMERIC_CHECK); ?> 
        }, 
        { 
          type: "column",   
          name: "Sold", 
          legendText: "Sold", 
          axisYType: "secondary", 
          showInLegend: true, 
          dataPoints:<?php echo json_encode($dataPoints2, 
              JSON_NUMERIC_CHECK); ?> 
        }] 
      }); 
      chart.render();

      function toggleDataSeries(e) { 
        if (typeof(e.dataSeries.visible) === "undefined"
              || e.dataSeries.visible) { 
          e.dataSeries.visible = false; 
        } 
        else { 
          e.dataSeries.visible = true; 
        } 
        chart.render(); 
      }

    } 
</script> 
</head>

<body> 
  <p id="chartContainer" style="height: 300px; width: 100%;"></p> 
</body> 
</html>

看完上述内容,你们对canvasJS在PHP中如何制作动态图表有进一步的了解吗?如果还想了解更多知识或者相关内容,请关注创新互联行业资讯频道,感谢大家的支持。

文章名称:canvasJS在PHP中如何制作动态图表
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