Get et last n days in Carbon

last_days.php

<?php

public function index()
{
    var_dump($this->last_days(5));
}

function last_days($number)
{
    $days = [];
    $counter = 0;
    $step = Carbon::now();

    while($counter < $number)
    {
        $days[$counter][1] = $step->format('Y-m-d 00:00:00');
        $days[$counter][0] = $step->subDay()->format('Y-m-d 00:00:00');
        //use subWeek,subMonth and others to get last weeks , months and others
        $counter++;
    }

    return $days;
}