如何以这种格式显示时间？

Question

时间应该像0000:00:0:00:00一样显示给代表YYYY:WW:D:HH:MM的用户。我需要增加/减少/设置时间的方法。

如何使用PHP DateTime()实现这一目标？即使我只有一个小时，也应该始终以这种格式显示它0000:00:0:01:00。

感谢您的帮助！

Answer 1

echo date('Y:m:j:h:i');

https://www.php.net/manual/en/function.date.php日期的第二个参数是时间戳记

Answer 2

Y   A full numeric representation of a year, 4 digits           Examples: 1999 or 2003
W   ISO-8601 week number of year, weeks starting on Monday      Example: 42 (the 42nd week in the year)
m   Numeric representation of a month, with leading zeros       01 through 12
j   Day of the month without leading zeros                      1 to 31
H   24-hour format of an hour with leading zeros                00 through 23
i   Minutes with leading zeros                                  00 to 59

关于您的问题，请参考How to create datetime from week number。这是Demo
$str = '2019-45-09 12:07';
$arr = explode(" ",$str);
$date_arr = explode("-",$arr[0]);
$time_arr = explode(":",$arr[1]);
$date = new DateTime();
$date->setISODate($date_arr[0],$date_arr[1],$date_arr[2])->setTime($time_arr[0],$time_arr[1]);
echo $date->format("Y-W-d H:i:s") . PHP_EOL;
$date->add(new DateInterval("P1D"));
echo $date->format("Y-W-d H:i:s");