Chart.js - Getting data from database using mysql and php -

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i'm trying convert static data using database results. i'll using mysql , php.

this example code have

    var randomscalingfactor = function(){ return math.round(math.random()*100)};     var linechartdata = {         labels : ["january","february","march","april","may","june","july"],         datasets : [             {                 label: "my first dataset",                 fillcolor : "rgba(220,220,220,0.2)",                 strokecolor : "rgba(220,220,220,1)",                 pointcolor : "rgba(220,220,220,1)",                 pointstrokecolor : "#fff",                 pointhighlightfill : "#fff",                 pointhighlightstroke : "rgba(220,220,220,1)",                 data : [randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor()]             },             {                 label: "my second dataset",                 fillcolor : "rgba(151,187,205,0.2)",                 strokecolor : "rgba(151,187,205,1)",                 pointcolor : "rgba(151,187,205,1)",                 pointstrokecolor : "#fff",                 pointhighlightfill : "#fff",                 pointhighlightstroke : "rgba(151,187,205,1)",                 data : [randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor(),randomscalingfactor()]             }         ]     } window.onload = function(){     var ctx = document.getelementbyid("canvas").getcontext("2d");     window.myline = new chart(ctx).line(linechartdata, {         responsive: true     }); }

below php/msql

$result = mysql_query("select count(*) customer month='january'") or die(mysql_error()); $row1 = mysql_fetch_array( $result );  $result = mysql_query("select count(*) customer month='february'") or die(mysql_error()); $row2 = mysql_fetch_array( $result );  $result = mysql_query("select count(*) customer month='march'") or die(mysql_error()); $row3 = mysql_fetch_array( $result );

how use count mysql query , implement datasets on chartjs? labels generated mysql query too. should loop datasets inside jquery code?

this plugin i'm using : http://www.chartjs.org/docs/#line-chart-introduction

please place php code file called api.php , use $.ajax these data json format. convert data json format data should use json_encode() php function.

i have set sample example can see here.

please refer below code example:

  1. api.php

    $arrlabels = array("january","february","march","april","may","june","july"); $arrdatasets = array('label' => "my first dataset",'fillcolor' => "rgba(220,220,220,0.2)", 'strokecolor' => "rgba(220,220,220,1)", 'pointcolor' => "rgba(220,220,220,1)", 'pointstrokecolor' => "#fff", 'pointhighlightfill' => "#fff", 'pointhighlightstroke' => "rgba(220,220,220,1)", 'data' => array('28', '48', '40', '19', '86', '27', '90'));  $arrreturn = array(array('labels' => $arrlabels, 'datasets' => $arrdatasets));  print (json_encode($arrreturn));

  2. example.html

    $.ajax({ type: 'post', url: 'api.php', success: function (data) { linechartdata = data;//alert(json.stringify(data)); var myline = new chart(document.getelementbyid("canvas").getcontext("2d")).line(linechartdata);  var ctx = document.getelementbyid("canvas").getcontext("2d"); window.myline = new chart(ctx).line(linechartdata, {responsive: true}); }  });

please note should pass value of randomscalingfactor() @ api.php.

please check , let me know if require further help.


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