php时间戳strtotime前一天或后一天的日期

直接上代码,自己去运行吧。

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

//指定的时间增加5天
$date1 = "2014-11-11";
echo date('Y-m-d', strtotime("$date1 +5 day")) . "
";//输出结果:2014-11-16 //当前的时间增加5天(今天是 2016-06-25) echo date('Y-m-d', strtotime("+5 day")) . "
";//输出结果:2016-06-30 //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()) . "
"; echo "昨天:" . date("Y-m-d", strtotime("-1 day")) . "
"; echo "明天:" . date("Y-m-d", strtotime("+1 day")) . "
"; echo "一周后:" . date("Y-m-d", strtotime("+1 week")) . "
"; 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")) . "
"; echo "下个星期四:" . date("Y-m-d", strtotime("next Thursday")) . "
"; echo "上个周一:".date("Y-m-d", strtotime("last Monday"))."
"; echo "一个月前:".date("Y-m-d", strtotime("last month"))."
"; echo "一个月前:".date("Y-m-d", strtotime("-1 month"))."
"; echo "一个月后:".date("Y-m-d", strtotime("+1 month"))."
"; echo "十年后:".date("Y-m-d", strtotime("+10 year"))."
";