两个日期之间的小时数差异（整数）[重复]

Question

Possible Duplicate:
Calculate number of hours between 2 dates in PHP

How can I get the number of hours of difference between two dates in PHP? I need to get an integer since I want to know if is bigger or smaller than a particular value.

Answer 1

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