Tambahkan data dinamis ke bagan garis dari database mysql dengan bagan tinggi

Saya berasumsi bahwa Anda memiliki beberapa seri dalam grafik di mana backend memberikan satu titik per seri per waktu.

Demi kesederhanaan, saya sarankan Anda mengembalikan waktu dalam milidetik. Saya tidak terlalu mahir dalam PHP tapi saya rasa intinya sudah jelas

<?php

header("Content-type: text/json");


 include_once 'include/connection.php';
 $db = new DB_Class(); 


     $query = "select distinct idchip from datatable ";
     $result = mysql_query( $query );
     $rows = array();
     $count = 0;

     while( $row = mysql_fetch_array( $result ) ) {
         $SQL1 =     "SELECT datetime,temperature FROM `datatable` WHERE idchip=".$row['0']." ORDER BY datetime DESC limit 0,1 ";

        $serie = new StdClass;
        $serie->name = $row['0'];
        $result1 = mysql_query($SQL1);

        $points = array();
        while ($rows = mysql_fetch_array($result1)) {
           $points[] = array(strtotime($rows['0']) * 1000, $rows['1']);
        }

        $serie->data = $points;
        $series[] = $serie;
     }


// Create a PHP array and echo it as JSON
$ret = $series;
echo json_encode($ret);
?>

Kode sisi klien akan menjadi:

var chart;
var chartSeries = {};
var latestTimeReported = {};

function requestData() {

  $.ajax({
    url: 'live-server-data.php',
    success: function(seriesUpdate) {

      //in case initializer of highcharts is too quick - skip the update
      if (!chart) {
        setTimeout(requestData, 1000);
        return;
      }

      $.each(seriesUpdate, function (serieIndex, serieUpdate) {
        var existingSerie = chartSeries[serieUpdate.name];
        var newPoint = serieUpdate.data[0];
        var lastInsertedTime = latestTimeReported[serieUpdate.name];          

        if (lastInsertedTime  && lastInsertedTime < newPoint[0]) {
          console.log('Attempt inserting old data!!!!');
          return;
        }

        latestTimeReported[serieUpdate.name] = newPoint[0];

        if (existingSerie) {
          var shift = existingSerie.data.length > 20;
          existingSerie.addPoint(newPoint , true, shift);
        } else {
          var newSerie = chart.addSeries({                        
            name: serieUpdate.name,
            data: serieUpdate.data
          }, true);
          chartSeries[serieUpdate.name] = newSerie;
        }

      });

      // call it again after one second
      setTimeout(requestData, 1000);
    },
    cache: false
  });
}

$(document).ready(function() {
    chart = new Highcharts.Chart({
        chart: {
            renderTo: 'container',
            defaultSeriesType: 'spline',
            events: {
                load: requestData
            }
        },
        title: {
            text: 'Live random data'
        },
        xAxis: {
            type: 'datetime',
            tickPixelInterval: 150,
            maxZoom: 20 * 1000
        },
        yAxis: {
            minPadding: 0.2,
            maxPadding: 0.2,
            title: {
                text: 'Value',
                margin: 80
            }
        },
        series: []
    });

Anda dapat melihat contoh baru yang diperbarui di sinihttp://plnkr.co/edit/OqMofEGDadF9J3Uit8qD