Easy JSON with CakePHP and jQuery

I am not sure if this is the fanciest way to get the job done but it works REALLY well. What job am I referring to? I am referring to outputting data as JSON in a CakePHP view and then parsing it in a jQuery AJAX response. Its fairly easy to accomplish with the JSON parser provided by json.org. Scroll to the bottom and download/include json2.js.
Controller example:

$sizeArray = getimagesize('/path/to/really_cool_image.jpg');

$outputArray = array(
'file' => 'really_cool_image.jpg',
'width' => $sizeArray[0],
'height' => $sizeArray[1],
);

$this->set('result', $outputArray);

$this->render(null, 'ajax');

AJAX View example:

Configure::write('debug', 0);
echo $javascript->object($result);

jQuery AJAX response handler example:

function(response, status) {
imageDetails = JSON.parse(response);
imageName = imageDetails.file;
}