Response::fromJson php code example
Example 1: php change header to json
<?PHP
$data = /** whatever you're serializing **/;
header('Content-Type: application/json');
echo json_encode($data);
Example 2: php json_decode
$personJSON = '{"name":"Johny Carson","title":"CTO"}';
$person = json_decode($personJSON);
echo $person->name; // Johny Carson