Is there a way to find the week number for a year using PHP?

Question

Is there a way to find the week number for a year using PHP?

Answer 1

You can do this using date, using a format string Wthat returns:

ISO-8601 week number of year, weeks starting on Monday (added in PHP 4.1.0)

eg.

date("W");

Answer 2

Try the date ('W'); http://my2.php.net/manual/en/function.date.php

Answer 3

I believe that the standard itself is called the GPS week number, see http://www.ngs.noaa.gov/CORS/Gpscal.html

The identifier of the current week is 1578.