php - difference in days between two dates

Question

I've always used the code below to calculate the difference (in days) between two dates. But I'm wondering if there is something more intelligent, someone knows a better way to do this?

//86400 one day
$data1 = '2013-07-24 21:30:00';
$data2 = '2013-08-24 21:30:00';

$diff =  (abs(strtotime($data1) - strtotime($data2))) / 86400;

var_dump($diff);

Answer 1

您可以使用DateTime:diff：

$data1 = new DateTime('2013-07-24 21:30:00');
$data2= new DateTime('2013-08-24 21:30:00');
$interval = $data1->diff($data2);
echo $interval->format('%R%a days');

如果您的输入日期具有不同的格式，您还可以使用DateTime::createFromFormat以获得更好的结果，例如：

$date1 = DateTime::createFromFormat('Y-m-d H:i:s', '2013-07-24 21:30:00');
$date2 = DateTime::createFromFormat('Y-m-d H:i:s', '2013-08-24 21:30:00');
$interval = $date1->diff($date2);
echo $interval->format('%R%a days');