PHP时间日期操作增减(date strtotime) 加一天 加一月

date_default_timezone_set( 'PRC' );  //默认时区

//当前的时间增加5天

$date1 =  "2014-11-11" ;

echo date ( 'Y-m-d' , strtotime ( "$date1 +5 day" ));   //输出结果：2014-11-16

//相应地,要增加月,年,将day改成month或year即可

 

 

//+++ 今天、昨天、明天 、上一周、下一周 +++++++++

echo "今天:" , date ( "Y-m-d" ,time()), "<hr>" ;

echo "昨天:" , date ( "Y-m-d" , strtotime ( "-1 day" )),  "<hr>" ;

echo "明天:" , date ( "Y-m-d" , strtotime ( "+1 day" )),  "<hr>" ;

echo "一周后:" , date ( "Y-m-d" , strtotime ( "+1 week" )),  "<hr>" ;

echo "一周零两天四小时两秒后:" , date ( "Y-m-d G:H:s" , strtotime ( "+1 week 2 days 4 hours 2 seconds" )),  "<hr>" ;

echo "下个星期四:" , date ( "Y-m-d" , strtotime ( "next Thursday" )),  "<hr>" ;

echo "上个周一:" . date ( "Y-m-d" , strtotime ( "last Monday" )). "<hr>" ;

echo "一个月前:" . date ( "Y-m-d" , strtotime ( "last month" )). "<hr>" ;

echo "一个月后:" . date ( "Y-m-d" , strtotime ( "+1 month" )). "<hr>" ;

echo "十年后:" . date ( "Y-m-d" , strtotime ( "+10 year" )). "<hr>" ;