php values exporting to javascript

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1

I have a code with php and javascript, I would like to know how to use the variable value of my code in php within the java script. Follows the code:

var teste = "<?php echo $teste; ?>";
var chart = new Highcharts.Chart({
  chart: {
    renderTo: 'container',
    type: 'column',
    options3d: {
      enabled: true,
      alpha: 6,
      beta: 16,
      depth: 100,
      viewDistance: 200
    }
  },
  xAxis: {
    type: 'category'
  },
  title: {
    text: 'Clientes'
  },
  subtitle: {
    text: 'Gráfico demonstrativo'
  },
  plotOptions: {
    column: {
      depth: 25
    }
  },
  series: [{
    "colorByPoint": true,
    data: [{
      "name": "Coluna 1",
      "y": teste.9,
      "drilldown": "Coluna "
    }, {
      "name": "Coluna 2",
      "y": 106.4,
      "drilldown": "Coluna 2"
    }, {
      "name": "Coluna 3",
      "y": 1000.5,
      "drilldown": "Coluna 3"
    }, {
      "name": "Coluna 4",
      "y": 144.0,
      "drilldown": "Coluna 4"
    }]
  }]
});

function showValues() {
  $('#alpha-value').html(chart.options.chart.options3d.alpha);
  $('#beta-value').html(chart.options.chart.options3d.beta);
  $('#depth-value').html(chart.options.chart.options3d.depth);
}


$('#sliders input').on('input change', function() {
  chart.options.chart.options3d[this.id] = parseFloat(this.value);
  showValues();
  chart.redraw(false);
});

showValues();
#container,
#sliders {
  min-width: 310px;
  max-width: 800px;
  margin: 0 auto;
}

#container {
  height: 400px;
}
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/highcharts-3d.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<script src="https://code.highcharts.com/modules/export-data.js"></script>
<?php $teste="20"; ?>
<div id="container"></div>
<div id="sliders">
</div>

php javascript

2 answers

1


Good evening, make sure you are assigning the PHP variable before your echo in javascript, I think you are not doing this.

Example:

<?php 
    $teste = 20;
?>
<!DOCTYPE html>
<html>
    <head>
        <title>Exemplo</title>
    </head>
    <script>
        var teste = <?= $teste ?>;
        console.log(teste);
    </script>
<body>
</body>
</html>

Be sure to put ; after declaring and assigning the variable in javascript. Note that some servers are not enabled to run the output <?= var ?> you can use <?php echo var; ?> despite being less elegant.

Remember PHP runs on server and javascript on client.

  • Excellent! gave mto right. Thanks.

0

you should echo the html and with jquery take this value example :

<div id="container" id="<?= $teste="20"; ?>"></div>

Jquery

$(document).ready(function() { 
        var teste = $("#conteiner").attr('id');
});

  • Thanks for the reply. Good to know that there are other ways to achieve the same result.

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