I have created a webservice and return data in json but on API testing site showing response not in formatted form.
My code is as below :
return json_encode(array("Data" => array("data" => "hello","data2" => "hello1")),JSON_PRETTY_PRINT);
How to get it?

JSON_PRETTY_PRINTflag. secure.php.net/json_encodeJSON_PRETTY_PRINT, but not working.