获取过去30天内的所有日期（日期时间对象）

Question

I am trying to get an array of datetime objects but failing miserably.

I want to take today's date, and get all dates within the last 30 days.

$today = new DateTime();
$begin = $today->sub(new DateInterval('P30D'));

$interval = new DateInterval('P1D'); // 1 Day
$dateRange = new DatePeriod($begin, $interval, $today);

$range = [];
foreach ($dateRange as $date) {
    $range[] = $date->format('Y-m-d');
}

When I dump out $range, I get an empty array.

What am I doing wrong?

Answer 1

Change

$begin = $today->sub(new DateInterval('P30D'));

to

$begin = new DateTime();
$begin->sub(new DateInterval('P30D'));