<?php $time1=strtotime(date("Y-m-d H:i:s")); $tim2=strtotime("2015-10-01 00:00:00"); $time3=strtotime("2016-01-01"); $sub1=ceil(($tim2-$time1)/3600);//小时 $sub2=ceil(($tim2-$time1)/86400);//天 $sub3=ceil(($time3-$time1)/86400); echo "距离2015年国庆还有<font color='red'>$sub1</font>小时<br>"; echo "距离2015年国庆还有<font color='red'>$sub2</font>天<br>"; echo "距离2016年元旦还有<font color='red'>$sub3</font>天";