javascript - php variable to google charts api no JSON -


i'm trying pass few php variables google chart, , cannot seem syntax right. don't want invoke json (need i?).

stock example: works:

<script type="text/javascript" src="https://www.google.com/jsapi"></script> <script type="text/javascript">      google.load('visualization', '1.0', {'packages':['corechart']});      google.setonloadcallback(drawchart);      function drawchart() {         var data = new google.visualization.datatable();         data.addcolumn('string', 'number');         data.addcolumn('number', 'frequency');     data.addrows([             ['mushrooms', 3],             ['onions', 1],             ['olives', 1],              ['zucchini', 1],             ['pepperoni', 2]         ]);         var options = {             'title':'title',             'width':400,             'height':300         };      var chart = new google.visualization.barchart(document.getelementbyid('chart_div'));     chart.draw(data, options); } </script>

however, not (assume same surrounding code)

  function drawchart() {    var data = new google.visualization.datatable();   data.addcolumn('string', 'number');   data.addcolumn('number', 'frequency');      data.addrows([     ['mushrooms', <?php echo $phpvariable ?>],     ['onions', 1],     ['olives', 1],      ['zucchini', 1],     ['pepperoni', 2]   ]);

my thoughts: positioning of calculation of $phpvariable wrong? or need use json somehow, , php variables cannot passed?


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