从当前日期减去下一个日期值[关闭]

Question

Thanks for the insight, although it didn't work for me. these are my code:

<?php 

$_SESSION['start'] = $_GET['start'];
$_SESSION['end']=   $_GET['end']; 

?>

                                                            <?php 

$end=$_SESSION['end'];
$start=$_SESSION['start'];                                    $date_end=$end;
$date_start=$start;
$night=$date_end - $date_start;  

?>

So immediately the $date_end enter the next month, it will give me a error value.

Answer 1

$datetime1 = date_create('2009-10-11');
$datetime2 = date_create('2009-10-13');
$interval = date_diff($datetime1, $datetime2);
echo $interval->format('%R%a days');