差异小时，两个日期（整数）

Question

可能重复之间：
Calculate number of hours between 2 dates in PHP

我怎样才能在PHP两个日期之间相差的小时数？我需要得到一个整数，因为我想知道是大于还是小于特定值。

Answer 1

<?php 
$time1 = time(); 
$time2 = mktime(0,0,0,11,13,2012); // earlier today 
echo ($time1 - $time2)/3600; // 3600 seconds in hour 
?> 

Answer 2

尝试：

$date1 = "2012-11-05 12:35:00"; 
$date2 = "2012-11-07 14:35:00"; 
$diff = strtotime($date2) - strtotime($date1); 
$diff_in_hrs = $diff/3600; 
print_r($diff_in_hrs); 

Manual

Demo

Answer 3

如果你有一个上最新的PHP

$dateOne = new DateTime('2012-01-20 00:00:00'); 
$dateTwo = new DateTime('2012-01-21 02:00:00'); 

//从程序 $ interval = date_diff（$ dateOne，$ dateTwo）;

// Alternatively OOP style if supported 
$interval = $dateOne->diff($dateTwo); 

参见：http://www.php.net/manual/en/class.dateinterval.php