javascript - Generated Google Chart Page not working -


i'm using codeigniter generate page google chart data mysql database. page isn't displayed (no chart @ all). don't know part of generated code wrong. generated code this:

<html> <head> <script type="text/javascript" src="https://www.google.com/jsapi"></script> <script type="text/javascript">     google.load("visualization", "1", {packages:["corechart"]});     google.setonloadcallback(drawchart);     // create our data table out of json data loaded server.     var data = new google.visualization.datatable();     data.addcolumn('number', 'time');     data.addcolumn('number', 'va');     data.addcolumn('number', 'vb');     data.addcolumn('number', 'vc');     //var d = new date();             data.addrow([1400230864720,9192114,9194641,9190145]);             data.addrow([1400230864740,9191693,9194641,9189443]);             data.addrow([1400230864760,9191694,9198856,9189444]);             data.addrow([1400230864780,9190147,9193520,9189867]);             data.addrow([1400230864800,9188180,9197449,9190146]);             data.addrow([1400230864820,9189444,9196889,9190567]);             data.addrow([1400230864840,9188461,9196186,9188740]);             data.addrow([1400230864860,9190990,9199556,9188460]);             data.addrow([1400230864880,9189867,9193518,9188600]);             data.addrow([1400230864900,9189303,9198855,9187899]);             var options = {       title: 'phasor'     };     var chart = new google.visualization.linechart(document.getelementbyid('chart_div'));     chart.draw(data,options);   } </script> </head> <body> <div id="chart_div" style="width: 900px; height: 500px;"></div> </body> </html>

you missing function call below google.setonloadcallback(drawchart);

    <html>     <head>     <script type="text/javascript" src="https://www.google.com/jsapi"></script>     <script type="text/javascript">         google.load("visualization", "1", {packages:["corechart"]});         google.setonloadcallback(drawchart);         function drawchart() {         // create our data table out of json data loaded server.         var data = new google.visualization.datatable();         data.addcolumn('number', 'time');         data.addcolumn('number', 'va');         data.addcolumn('number', 'vb');         data.addcolumn('number', 'vc');         //var d = new date();                 data.addrow([1400230864720,9192114,9194641,9190145]);                 data.addrow([1400230864740,9191693,9194641,9189443]);                 data.addrow([1400230864760,9191694,9198856,9189444]);                 data.addrow([1400230864780,9190147,9193520,9189867]);                 data.addrow([1400230864800,9188180,9197449,9190146]);                 data.addrow([1400230864820,9189444,9196889,9190567]);                 data.addrow([1400230864840,9188461,9196186,9188740]);                 data.addrow([1400230864860,9190990,9199556,9188460]);                 data.addrow([1400230864880,9189867,9193518,9188600]);                 data.addrow([1400230864900,9189303,9198855,9187899]);                 var options = {           title: 'phasor'         };         var chart = new google.visualization.linechart(document.getelementbyid('chart_div'));         chart.draw(data,options);        } // closing tag function      </script>     </head>     <body>     <div id="chart_div" style="width: 900px; height: 500px;"></div>     </body>     </html>

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