减去两个日期以显示天数

Question

<?php
    $datetime1 = new DateTime("$da[tofollowon]");

    $datetime2 = new DateTime();

    $difference = $datetime1->diff($datetime2);

    $days = $difference->days;
?>

上面的php代码显示了两个日期的差异，但是我想从datetime1中减去这两个日期datetime2，它甚至应该显示负值。

Answer 1

试试这个

 $d1 = strtotime("2014-01-10"); // or your date as well
 $d2 = strtotime("2014-01-01");
 $datediff = $d1 - $d2;
 echo floor($datediff/(60*60*24)).' days';

Answer 2

尝试

$start = strtotime('2010-01-25');
$end = strtotime('2010-02-20');
$days_between = ceil(abs($end - $start) / 86400);

更多信息： - Finding the number of days between two dates