If anybody (derick?) cares,
gmmktime returning completly bogus results. It can be easly checked out
by manually setting TZ shell variable.
Lets try it like this:
TZ=GMT+1 php -r "echo gmmktime();"
gives 1100292805
TZ=GMT+2 php -r "echo gmmktime();"
gives 1100289207
TZ=GMT+3 php -r "echo gmmktime();"
gives 1100285610
But it should return always the same time (ok, few seconds here and
there, needed to type each command..) no matter which timezone is set.
Why ? Because 'tm_gmtoff' (and gmadjust manually calculated from
'timezone' and 'is_dst' in cases where tm_gmtoff is not available) shows
number of seconds EAST from GMT (man localtime is your friend here). So
to get GMT time from, we have to substract this number from localtime,
and what is php currently doing, is adding it to localtime, which can't
be a good thing no matter how you look at it (-:
So the fix is easy:
--- ext/standard/datetime.c.orig Fri Nov 12 22:35:04 2004
+++ ext/standard/datetime.c Fri Nov 12 22:35:33 2004
@@ -256,7 +256,7 @@
gmadjust = -(is_dst ? timezone - 3600 : timezone);
#endif
#endif
-
seconds += gmadjust;
-
seconds -= gmadjust; } RETURN_LONG(seconds);