Latihan json

<?php
$data=array(
  "61" => array("sku"=>"a","unit_price"=>"1.0000","supplier_id"=>"61","sku_id"=>"7"),
  "62" => array("sku"=>"b","unit_price"=>"2.0000","supplier_id"=>"62","sku_id"=>"3"),
  "63" => array("sku"=>"c","unit_price"=>"3.0000","supplier_id"=>"63","sku_id"=>"4"),
  "64" => array("sku"=>"d","unit_price"=>"4.0000","supplier_id"=>"64","sku_id"=>"10"),
  "65" => array("sku"=>"e","unit_price"=>"5.0000","supplier_id"=>"65","sku_id"=>"9"),
  "66" => array("sku"=>"f","unit_price"=>"6.0000","supplier_id"=>"66","sku_id"=>"2"),
  "59" => array("sku"=>"g","unit_price"=>"7.0000","supplier_id"=>"59","sku_id"=>"11"),
  "67" => array("sku"=>"h","unit_price"=>"8.0000","supplier_id"=>"67","sku_id"=>"5"),
  "68" => array("sku"=>"i","unit_price"=>"9.0000","supplier_id"=>"68","sku_id"=>"8"),
  "69" => array("sku"=>"j","unit_price"=>"10.0000","supplier_id"=>"69","sku_id"=>"6"),
  "70" => array("sku"=>"k","unit_price"=>"11.0000","supplier_id"=>"70","sku_id"=> "1")
);
$json=json_encode($data);
?>
<!DOCTYPE html>
<head>
  <title>Latihan JSON</title>
  <head>
  <body>
    <script>
    var sumber=<?php echo $json;?>;
    function getData(index)
    {
      return sumber[index];
    }
    var data=getData("66");
    alert(data['sku']+"--"+data['unit_price']+"--"+data['supplier_id']+"--"+data['sku_id']);
    </script>
  </body>
</html>