PHP Spline Charts & Graphs

Download PHP Chart Samples

Spline Charts are like Line Charts except that data points are connected using smooth curved lines. Spline charts are also called Smoothed / Curved Line Chart. The given example shows simple PHP Spline Chart. It also includes source code that you can try running locally.

  1. <?php
  2.  
  3.  $dataPoints = array(
  4. 	array("x" => 946665000000, "y" => 3289000),
  5. 	array("x" => 978287400000, "y" => 3830000),
  6. 	array("x" => 1009823400000, "y" => 2009000),
  7. 	array("x" => 1041359400000, "y" => 2840000),
  8. 	array("x" => 1072895400000, "y" => 2396000),
  9. 	array("x" => 1104517800000, "y" => 1613000),
  10. 	array("x" => 1136053800000, "y" => 1821000),
  11. 	array("x" => 1167589800000, "y" => 2000000),
  12. 	array("x" => 1199125800000, "y" => 1397000),
  13. 	array("x" => 1230748200000, "y" => 2506000),
  14. 	array("x" => 1262284200000, "y" => 6704000),
  15. 	array("x" => 1293820200000, "y" => 5704000),
  16. 	array("x" => 1325356200000, "y" => 4009000),
  17. 	array("x" => 1356978600000, "y" => 3026000),
  18. 	array("x" => 1388514600000, "y" => 2394000),
  19. 	array("x" => 1420050600000, "y" => 1872000),
  20. 	array("x" => 1451586600000, "y" => 2140000)
  21.  );
  22.  
  23. ?>
  24. <!DOCTYPE HTML>
  25. <html>
  26. <head>
  27. <script>
  28. window.onload = function () {
  29.  
  30. var chart = new CanvasJS.Chart("chartContainer", {
  31. 	animationEnabled: true,
  32. 	title:{
  33. 		text: "Company Revenue by Year"
  34. 	},
  35. 	axisY: {
  36. 		title: "Revenue in USD",
  37. 		valueFormatString: "#0,,.",
  38. 		suffix: "mn",
  39. 		prefix: "$"
  40. 	},
  41. 	data: [{
  42. 		type: "spline",
  43. 		markerSize: 5,
  44. 		xValueFormatString: "YYYY",
  45. 		yValueFormatString: "$#,##0.##",
  46. 		xValueType: "dateTime",
  47. 		dataPoints: <?php echo json_encode($dataPoints, JSON_NUMERIC_CHECK); ?>
  48. 	}]
  49. });
  50.  
  51. chart.render();
  52.  
  53. }
  54. </script>
  55. </head>
  56. <body>
  57. <div id="chartContainer" style="height: 370px; width: 100%;"></div>
  58. <script src="https://cdn.canvasjs.com/canvasjs.min.js"></script>
  59. </body>
  60. </html>

Chart Customizations

You can enable the export feature in the chart by setting exportEnabled to true. Some other frequently used customization options include lineThickness, lineColor, markerSize, markerType, etc.