javascript - how to give dynamic values to chart from controller to view in code igniter -


the following code having.in code giving values statically. need need dynamic values , chart has displayed.here items variable have values in same way controller , chart has displayed.thanks. 

 <!doctype html>     <html>     <head>       <script src="http://www.amcharts.com/lib/amcharts.js" type="text/javascript"></script>      </head>     <body>   <div id="chartdiv" style="width: 100%; height: 355px;"></div>  <script type="text/javascript" language="javascript"> var chart;  var chartdata = [{     year: "fy 2011-12",     visits: 3025     }, {     year: "fy 2011-12",     visits: 1882     }, {     year: "fy 2011-12",     visits: 1809     }, {     year: "fy 2011-12",     visits: 1322     }     }];   amcharts.ready(function() {     // serial chart     chart = new amcharts.amserialchart();     chart.automarginoffset = 0;     chart.dataprovider = chartdata;     chart.categoryfield = "year";     chart.startduration = 1;     chart.depth3d = 20;     chart.angle = 30;      // axes     // category     var categoryaxis = chart.categoryaxis;     categoryaxis.labelrotation = 45; // line makes category values rotated     categoryaxis.gridalpha = 0;     categoryaxis.fillalpha = 1;     categoryaxis.fillcolor = "#fafafa";     categoryaxis.gridposition = "start";      // value     var valueaxis = new amcharts.valueaxis();     valueaxis.dashlength = 5;     valueaxis.title = "visitors country";     valueaxis.axisalpha = 0;     chart.addvalueaxis(valueaxis);      // graph     var graph = new amcharts.amgraph();     graph.valuefield = "visits";     graph.colorfield = "color";     graph.balloontext = "[[category]]: [[value]]";     graph.type = "column";     graph.linealpha = 0;     graph.fillalphas = 1;     chart.addgraph(graph);      // write     chart.write("chartdiv"); });     </script>     </body>     </html>

you can collect value in array on controller after on view page can call :-

<!doctype html>     <html>     <head>       <script src="http://www.amcharts.com/lib/amcharts.js" type="text/javascript"></script>      </head>     <body>   <div id="chartdiv" style="width: 100%; height: 355px;"></div>  <script type="text/javascript" language="javascript"> var chart;  var chartdata = [{     year: "<?php echo $date1;?>",     visits: "<?php echo $date1visitval;?>"     }, {     year: "<?php echo $date2;?>",     visits: "<?php echo $date2visitval;?>"     }, {     year:  "<?php echo $date4;?>",     visits: "<?php echo $date3visitval;?>"     }, {     year:  "<?php echo $date4;?>",     visits: "<?php echo $date4visitval;?>"     }     }];   amcharts.ready(function() {     // serial chart     chart = new amcharts.amserialchart();     chart.automarginoffset = 0;     chart.dataprovider = chartdata;     chart.categoryfield = "year";     chart.startduration = 1;     chart.depth3d = 20;     chart.angle = 30;      // axes     // category     var categoryaxis = chart.categoryaxis;     categoryaxis.labelrotation = 45; // line makes category values rotated     categoryaxis.gridalpha = 0;     categoryaxis.fillalpha = 1;     categoryaxis.fillcolor = "#fafafa";     categoryaxis.gridposition = "start";      // value     var valueaxis = new amcharts.valueaxis();     valueaxis.dashlength = 5;     valueaxis.title = "visitors country";     valueaxis.axisalpha = 0;     chart.addvalueaxis(valueaxis);      // graph     var graph = new amcharts.amgraph();     graph.valuefield = "visits";     graph.colorfield = "color";     graph.balloontext = "[[category]]: [[value]]";     graph.type = "column";     graph.linealpha = 0;     graph.fillalphas = 1;     chart.addgraph(graph);      // write     chart.write("chartdiv"); });     </script>     </body>     </html>

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