Chart.js variable data how can i make this work?

๐Ÿ‘:0

...
$data = [];
// set all data to d.
foreach ($result as $d) {
  $data[] = $d;
}
?>

In chart.js

var jArray = <?php echo implode(',', $data); ?>

๐Ÿ‘:0

After alot of reasearch of other chart libaries i noticed highcharts used echo join() and got it to look like this
enter image description here

Here is my solution

<div class="row bg-dark">
    <div class="col-12 border">
    <canvas id="myChart"></canvas>
    </div>
</div>

<div class="container">
  <div>
    <?php
      $sth = $db->prepare("SELECT Actual FROM csvhoejde1");
      $sth->execute();

      /* Fetch all of the remaining rows in the result set */
      $result = $sth->fetchAll(PDO::FETCH_COLUMN, 0);
      // $result = explode("@", implode(",@", $result));
      // print_r for at se resultaterne.
      echo'<pre>';
      print_r($result);
      echo'</pre>';

    ?>
  <div>
</div>
  <!----------------------myChart---------------------->
  <script src="./assets/charts/dist/Chart.js"></script>
<script>



var canvas = document.getElementById("myChart");
var ctx = canvas.getContext("2d");

var horizonalLinePlugin = {
  afterDraw: function(chartInstance) {
    var yScale = chartInstance.scales["y-axis-0"];
    var canvas = chartInstance.chart;
    var ctx = canvas.ctx;
    var index;
    var line;
    var style;

    if (chartInstance.options.horizontalLine) {
      for (index = 0; index < chartInstance.options.horizontalLine.length; index++) {
        line = chartInstance.options.horizontalLine[index];

        if (!line.style) {
          style = "rgba(169,169,169, .6)";
        } else {
          style = line.style;
        }

        if (line.y) {
          yValue = yScale.getPixelForValue(line.y);
        } else {
          yValue = 0;
        }

        ctx.lineWidth = 3;

        if (yValue) {
          ctx.beginPath();
          ctx.moveTo(0, yValue);
          ctx.lineTo(canvas.width, yValue);
          ctx.strokeStyle = style;
          ctx.stroke();
        }

        if (line.text) {
          ctx.fillStyle = style;
          ctx.fillText(line.text, 0, yValue + ctx.lineWidth);
        }
      }
      return;
    };
  }
};
Chart.pluginService.register(horizonalLinePlugin);

var data = {
  labels: ["1", "2", "3", "4", "5", "6", "7","8", "9", "10", "11", "12", "13", "14","15", "16", "17", "18", "19", "20", "21", "22", "23", "24","25", "26", "27", "28", "29", "30", "31", "32", "33", "31"],
  datasets: [{
    label: "My First dataset",
    fill: false,
    lineTension: 0,
    backgroundColor: "rgba(75,192,192,0.4)",
    borderColor: "rgba(75,192,192,1)",
    borderCapStyle: 'butt',
    borderDash: [],
    borderDashOffset: 0.0,
    borderJoinStyle: 'miter',
    pointBorderColor: "rgba(75,192,192,1)",
    pointBackgroundColor: "#fff",
    pointBorderWidth: 1,
    pointHoverRadius: 5,
    pointHoverBackgroundColor: "rgba(75,192,192,1)",
    pointHoverBorderColor: "rgba(220,220,220,1)",
    pointHoverBorderWidth: 2,
    pointRadius: 4,
    pointHitRadius: 10,
    data: [<?php echo join($result, ',') ?>],
  }]
};

var myChart = new Chart(ctx, {
  type: 'line',
  data: data,
  options: {
    "horizontalLine": [{
      "y": 140,
      "style": "rgba(255, 0, 0, .4)",
    }, {
      "y": 120,
      "style": "#00ffff",
    }]
  }
});
</script>

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