PHP generating 13-digit timestamp like mktime

Question

Possible Duplicate:
php get microtime from date string

For a specific purpose, I need to get the 13-digit timestamp for a date/time, but I couldn't find a solution for this.

Like mktime in PHP, we can get a 10-digit timestamp

echo mktime($hour, $minute, $second, $month, $day, $year);

This outputs something like 1346689283.

So what about the 13-digit timestamp? Is PHP itself capable of generating such timestamps?

score 12 · Accepted Answer · answered Sep 03 '12 at 08:26

12

You are looking for microtime()

If you want to create microtime from a specific date, just add 000. Because in the end, the microtime is only 1 second.

answered Sep 03 '12 at 08:26

Rene Pot

yes, but I think he wants something that can create microtime from arbitrary dates, like mktime or strtotime would allow for unix timestamps – Gordon Sep 03 '12 at 08:28
1

@gordon well added that to the answer – Rene Pot Sep 03 '12 at 08:29
yep, Gordon's right, microtime() generates CURRENT timestamp with microseconds, and it will not allow me to specify year/month/day/hour/... Example: I need to get the 13-digit timestamp for 1998-02-13 17:44 – user1643156 Sep 03 '12 at 08:31
But there are no microseconds in "1998-02-13 17:44"? You might as well add '000' like Rene Pot said. – Terry Seidler Sep 03 '12 at 08:44
@user1643156 the microseconds are 1 second. Do you need it so specific? You can add any 3 random numbers like you want. It is not gonna make a big difference anyways. – Rene Pot Sep 03 '12 at 08:58
@Rene Pot, by adding 000 seems not working (maybe just in the program I'm using), it results a 1970 error. but 001 - 999 they all work. Anyway, why didn't I just try adding 3 numbers before posting... :) thanks! – user1643156 Sep 03 '12 at 09:18

Mihai Iorga · Answer 2 · 2012-09-03T08:38:52.760

8

Make milliseconds:

$milliseconds = round(microtime(true) * 1000);
echo date("Y-m-d",($milliseconds/1000));

edited Sep 03 '12 at 08:38

answered Sep 03 '12 at 08:27

Mihai Iorga

2 Answers2