如何找到所有月份的特定年份

1,I can get my current year income but don't know how to show all monthly income of current year.

2, if I want to create $selectYear as pick one of the random year then show the specific year monthly income of $selectYear just like question 1.

What I have try only the current/select year income but show monthly income of year, i still stuck there.

this my controller

public function index(){
  $selectYear= 2017;
    $this->getYearRevenue($selectYear);
    //customPickYearRevenue is for totalIncome of $selectYear
    $customPickYearRevenue = $this->getYearRevenue($selectYear);
}

private function getYearRevenue($selectYear){
    $yearPickRevenue = Order::whereYear('created_at', '=', $selectYear)
    ->where('order_status', 'Accepted')
    ->sum('amount');

    return $yearPickRevenue;
  }

I want to show month with amount(revenue of year)

sorry about hard code $selectYear

Maybe something like this:

private function getRevenue($selectYear, $selectMonth){
        return Order::whereYear('created_at', '=', $selectYear)
            ->whereMonth('created_at', '=', $selectMonth)
            ->where('order_status', 'Accepted')
            ->sum('amount');
    }

And then you can use a loop to get the revenue for each month:

$year = 20019;
$months = ['1', '2', '3',];
$revenues = [];

foreach($months as $month){
     array_push($revenues, getRevenue($year, $month);
}