📅  最后修改于: 2022-03-11 14:54:43.831000             🧑  作者: Mango
$datetime1 = new DateTime('2020-10-11 16:52:52');
$datetime2 = new DateTime('2020-10-13 16:52:52');
$interval = $datetime1->diff($datetime2);
echo $interval->format('%a days');