Description:
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using date("Y",$date) and date("w",$date) is not clean to get the YEARWEEK of a date.
in most of case it looks to work, for example :
with date of first or march 2005, it gives "2005" and "9"

but on certain cases, it's not possible to get REAL YearWeek of a date.
for example : date of 30th of december 2003 is the FIRST week of year 2004 !

then date("w",$date) gives correct week number : 1
but date("Y",$date) gives year 2003 (which is normal)

a function YEARWEEK is missing.
in mySQL I have such a function :
select YEARWEEK('20031231',1); returns "200401"
there are no way in php to get such result with date.

PS : please as mysql add an optional parameters to this function to support first day of the week. (0=sunday, 1=monday)
thank you.

Reproduce code:
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$d=mktime(0,0,0,12,30,2003);
echo date("d/m/y",$d)."\n";
echo "Year :".date("Y",$d)."  Week :".date("W",$d);
echo "\n expected YEARWEEK() : '200401'";



Expected result:
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 the required result of YEARWEEK future function is 200401

Actual result:
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this function does not exist yet, so.. no result.