php生成最近3年的所有日期

代码如下：

private function generateDates()
{
    $startDate = Carbon::now()->subYears(2);
    $endDate = Carbon::now();
    $period = CarbonPeriod::create($startDate, $endDate, CarbonPeriod::EXCLUDE_END_DATE);

    foreach ($period->toArray() as $date) {
        echo $date->format('Y-m-d') . "\n";
    }
}