PHP / JSON数组输出

I'm currently working to retrieve some data for which I want to use a FLOT line chart.

At present, this is how I am creating the array by getting data from the MYSQL database:

             $data = array("label" =>  $title);    

                while($row = $query->fetch()) {
                    $data['data'][] = array($row[3], $row[2]);
                }   

            $json = json_encode($data, JSON_NUMERIC_CHECK);
            echo $json;

The above code output the following array (Based on the data from the Database):

    {"label":"hosting","data":[[2,"06\/07\/2014"],[7,"09\/07\/2014"]]}

This is what I want, however I need to somehow change the formatting of the array so that it is correctly formatted for the FLOT charts.

How would I got about changing the array from this:

    {"label":"hosting","data":[[2,"09\/07\/2014"],[2,"09\/07\/2014"]]}

To this:

    {label: 'hosting', data: [[2,09\/07\/2014], [2,09\/07\/2014]]}

Using JQuery try this,

<script type="text/javascript">
    var obj = jQuery.parseJSON ( ' + <?php echo $json; ?> + ' );
</script>

try doing this

$data = array(label =>  $title, data => array());    

     while($row = $query->fetch()) {
       $data[data][] = array($row[3], $row[2]);
     }  

instead

$data = array("label" =>  $title);    

      while($row = $query->fetch()) {
          $data['data'][] = array($row[3], $row[2]);
      }