如果给出当天的随机时间戳，有一种简单的方法可以获得一天的unix时间范围吗？

Question

There is a simple way to get unix time range of a day if given a random timestamp from that day ? I have a date like 1345547471 which is "Tue, 21 Aug 2012 11:11:11 GMT"

There is a php function that can receive a timestamp like this and return a 00:00 hours timestamp and a 23:59 hours timestamp of that day ?

Thank you.

Answer 1

You can use the mod (gives the remainder after a division) PHP function like this to get the first second of a Unix timestamp (ie, today 0:00:00)

$var=time()-(time()%86400);

Then with this unix timstamp, you can add 86399 to get the last second of the day.

Edit: This doesn't account for dalylight savings.