JsonResponse option parameter - json

Question

In controller i have:
return response()->json(
[
'number' => (float)8
],
Response::HTTP_OK,
[],
JSON_PRESERVE_ZERO_FRACTION
);
This is output:
{
"number": 8
}
Is it possible to get 8.0?
This working good:
json_encode(['number' => (float)8],JSON_PRESERVE_ZERO_FRACTION);
UPDATE:
when i set response()->json from above to $variable and then print_r($variable) i get this:
(so it looks like it working, but with return in browser i get still 8 not 8.0)
Illuminate\Http\JsonResponse Object
(
[data:protected] => {"number":8.0}
[callback:protected] =>
[encodingOptions:protected] => 1024
[headers] => Symfony\Component\HttpFoundation\ResponseHeaderBag Object
(
[computedCacheControl:protected] => Array
(
[no-cache] => 1
[private] => 1
)
[cookies:protected] => Array
(
)
[headerNames:protected] => Array
(
[cache-control] => Cache-Control
[date] => Date
[content-type] => Content-Type
)
[headers:protected] => Array
(
[cache-control] => Array
(
[0] => no-cache, private
)
[date] => Array
(
[0] => Thu, 08 Feb 2018 11:27:34 GMT
)
[content-type] => Array
(
[0] => application/json
)
)
[cacheControl:protected] => Array
(
)
)
[content:protected] => {"number":8.0}
[version:protected] => 1.0
[statusCode:protected] => 200
[statusText:protected] => OK
[charset:protected] =>
[original] => Array
(
[number] => 8
)
[exception] =>
)

Answer 1

Use number_format():
json_encode(['number' => number_format(8, 1)]);
If number is coming as a string, use (float)$stringNumber instead of $stringNumber