use Carbon\Carbon;

// Days passed in a week

$now = Carbon::now();

$daysPassed = $now->dayOfWeek; // 0 (Sunday) to 6 (Saturday)

echo $daysPassed;

// Days passed in a month

$now = Carbon::now();

$daysPassed = $now->day; // Current day of the month

echo $daysPassed;

// Get days passed in a week with Monday as the start

Carbon::setWeekStartsAt(Carbon::MONDAY);

$now = Carbon::now();

$daysPassed = ($now->dayOfWeek + 6) % 7; // 0 (Monday) to 6 (Sunday)

echo $daysPassed;

use Carbon\Carbon;

$now = Carbon::now();

$daysPassed = $now->day; // Current day of the month

echo $daysPassed; 

use Carbon\Carbon;

$now = Carbon::now();

$daysPassed = $now->day; // Current day of the month

echo $daysPassed;