<?php
$end_date = date('20220407'); //디데이 날짜
$d_day = ceil((strtotime($end_date) - time()) / 86400);
if ($end_date == date('Ymd')) {
$d_day = '오늘은 D-Day입니다';
} elseif ($d_day < 0) {
$d_day = 'D-Day가 종료 되었습니다.';
} else {
$d_day = "D-Day ".$d_day."일 전입니다.";
}
?>
<br>
<?php echo $d_day;?>