JavaScript - Insert PHP multidimensional array into Javascript class in Google Charts -


i'm using google charts tutorial on how convert array graph.

the data in tutorial in function. want insert own data function php array. managed convert php array javascript array. below code:

$jsarray = array(); foreach($movingaverages $movingaverage) {    $jsarray[] = array((int) $movingaverage['unix'], (int) $movingaverage['closing-prices']);  }

below sample code:

array (     [0] => array         (             [0] => 1505040240             [1] => 3452         )      [1] => array         (             [0] => 1505040300             [1] => 3451         )      [2] => array         (             [0] => 1505040360             [1] => 3446         )      [3] => array         (             [0] => 1505040420             [1] => 3449         )

this current javascript code:

    <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>     <script type="text/javascript">      var js_array = <?php echo json_encode($jsarray);?>;     alert(js_array);         google.charts.load('current', {'packages':['corechart']});       google.charts.setonloadcallback(drawchart);        function drawchart() {         var data = google.visualization.arraytodatatable([           ['time', 'closing prices'],         [js_array]           ]);          var options = {           title: 'btc-eur',           curvetype: 'function',           legend: { position: 'top' }         };          var chart = new google.visualization.linechart(document.getelementbyid('curve_chart'));          chart.draw(data, options);       }     </script>   </head>   <body>     <div id="curve_chart" style="width: 100%; height: 500px"></div>   </body> </html>

when call alert(js_array); array called.

i don't know why chart not being displayed. i'm not sure how insert js_array function drawchart(). first time i'm using javascript. thank help.

you're adding 1 more dimension array.

var data = google.visualization.arraytodatatable([     ['time', 'closing prices'],     js_array ]);

update:

js_array.unshift(['time', 'closing prices']); var data = google.visualization.arraytodatatable(js_array);

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