PHP Carbon get toDay date by formatting date
$today = Carbon::today()->toDateString();
You can format the output like this:
Carbon::now()->format('Y-m-d');
Have you read documentation? There are plenty of examples how to do it
$dt = Carbon::now()
var_dump($dt->toDateTimeString() == $dt); // bool(true) => uses __toString()
echo $dt->toDateString(); // 1975-12-25
echo $dt->toFormattedDateString(); // Dec 25, 1975
echo $dt->toTimeString(); // 14:15:16
echo $dt->toDateTimeString(); // 1975-12-25 14:15:16
echo $dt->toDayDateTimeString(); // Thu, Dec 25, 1975 2:15 PM
// ... of course format() is still available
echo $dt->format('l jS \\of F Y h:i:s A'); // Thursday 25th of December 1975 02:15:16 PM