php 前一天或后一天的日期 （签到时用过）

date_default_timezone_set('PRC'); //默认时区
echo "今天:",date("Y-m-d",time()),"

";

echo "今天:",date("Y-m-d",strtotime("18 june 2008")),"

";

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 "一个月后:".date("Y-m-d",strtotime("+1 month"))."

";

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

";

?>

php判断一个日期距今天还有多少天

复制代码代码如下:

echo (strtotime('2020-5-20′)-strtotime(date(“Y-m-d”)))/86400;

?>