timestamp

问题 Hi I've just started learning about timestamp with an absolute template. In one of the examples it says $date1 = strtotime('2015-06-01'); will output Mon 08/01/2015 but I only get a number 1433113200 . What am I doing wrong. $date1 = strtotime('2015-06-01'); echo $date1; 回答1: Try like this, the number you get is the unix time stamp of your date. You need to reformat it. $date1 = date('D d/m/Y h:i:s A',strtotime('2015-06-01')); echo $date1; Here's a list of format that you can use (Source) Day

问题 I have a data-set which contains observations for several weeks with 2 minutes frequency. I want to increase the time interval from 2 minute to 5 minute. The problem is that, frequency of the observations are not always the same. I mean, theoretically, every 10 minute there should be 5 observation but usually it is not the case. Please let me know how I can aggregate the observations based on average function and with respect to the time and date of the observations. In other words

问题 There is an Oracle database schema (very small in data, but still about 10-15 tables). It contains a sort of configuration (routing tables). There is an application that have to poll this schema from time to time. Notifications are not to be used. If no data in the schema were updated, the application should use its current in-memory version. If any table had any update, the application should reload all the tables into memory. What would be the most effective way to check the whole schema

问题 I am currently working on an android application where I have to log all the sensor values. I got the sensor event timestamp from "event.timestamp" and I converted this value into a unix timestamp. long currTimeRelativeToBootMs = SystemClock.uptimeMillis(); long currTimeAbsoluteMs = System.currentTimeMillis(); mStartTimeAbsoluteS = ((double)(currTimeAbsoluteMs - currTimeRelativeToBootMs))/(double)1000.0; ... //timestampRelativeInNs = event.timestamp double temp = mStartTimeAbsoluteS+((double

问题 I am currently working on an android application where I have to log all the sensor values. I got the sensor event timestamp from "event.timestamp" and I converted this value into a unix timestamp. long currTimeRelativeToBootMs = SystemClock.uptimeMillis(); long currTimeAbsoluteMs = System.currentTimeMillis(); mStartTimeAbsoluteS = ((double)(currTimeAbsoluteMs - currTimeRelativeToBootMs))/(double)1000.0; ... //timestampRelativeInNs = event.timestamp double temp = mStartTimeAbsoluteS+((double

问题 I have a table with timestamp column i want to get the values where the timestamp in specific month (for example where the timpestamp between 1 september and 30 septemper) taking in considration if the month is 31 day. I use this query: SELECT users.username, users.id, count(tahminler.tahmin)as tahmins_no FROM users LEFT JOIN tahminler ON users.id = tahminler.user_id GROUP BY users.id having count(tahminler.tahmin) > 0 Can i add where timestamp IN(dates_array) ?? date_array will be the dates

问题 I have a table with timestamp column i want to get the values where the timestamp in specific month (for example where the timpestamp between 1 september and 30 septemper) taking in considration if the month is 31 day. I use this query: SELECT users.username, users.id, count(tahminler.tahmin)as tahmins_no FROM users LEFT JOIN tahminler ON users.id = tahminler.user_id GROUP BY users.id having count(tahminler.tahmin) > 0 Can i add where timestamp IN(dates_array) ?? date_array will be the dates

问题 I'm new to PHP and am currently still learning. I'm having issues with my registration form I think. username , password , email all insert into MySQL successfully. registered and last_seen do not. I thought I was using getTimestamp() wrong, but it echos what I need. However when I try to insert both timestamp fields into MySql, I see 0000-00-00 00:00:00 in those fields instead of what it echoed before the sql query. What am I doing wrong here? Any help is much appreciated. $date = new

问题 I want to create my own time stamp data structure in C. DAY ( 0 - 31 ), HOUR ( 0 - 23 ), MINUTE ( 0 - 59 ) What is the smallest data structure possible? 回答1: Well, you could pack it all in an unsigned short (That's 2 bytes , 5 bits for Day, 5 bits for hour, 6 bits for minute)... and use some shifts and masking to get the values. unsigned short timestamp = <some value>; // Bits: DDDDDHHHHHMMMMMM int day = (timestamp >> 11) & 0x1F; int hour = (timestamp >> 6) & 0x1F; int min = (timestamp) &

问题 Is there a way to create a .tar file that omits the values of atime/ctime/mtime for its files/directories? Why do we want to do this? We have a step in our build process that generates a directory of artifacts that gets packaged into a tarfile. We expect that build step to be idempotent -- given the same inputs, it produces exactly the same files/output each time. Ideally, we would like also like the step to be bitwise idempotent across clean builds, so that we can use hashes of successive