php date_diff 날수 구하기
$expire_date = substr($mb2, 0, 4) ."-" . substr($mb2, 4, 2) ."-" . substr($mb2, 6, 2) ." " . substr($mb2, 8, 2) .":" . substr($mb2, 10, 2) . ":00"; $datetime1 = date_create(date("Y-m-d H:i:s")); $datetime2 = date_create($expire_date); $interval = date_diff($datetime1, $datetime2); $diff= $interval->format("%a")."일"; echo $diff;