Sorry, I guess it would help if I actually attached the patch..... Here it is.
--Kris 2010/8/10 Kris Craig <kris.cr...@gmail.com> > Of course! Here's a patch of php_date.c (currently based off 5.3.2; I'll > need to rebase off 5.3.3 of course) showing the seasonal equinox support > I've added thus far. The formulas in there took quite a bit of research to > find, but ultimately I was able to find them in an old book titled, > "Astronomical Algorithms" by Jean Meeus. It's apparently considered the > definitive text on the subject and is used by organizations such as NASA to > calculate the seasons. The formulas are accurate to within a few seconds up > to the year AD 3000, but should be accurate to within a few minutes for > several thousand years after that. I've already tested this and it works > perfectly thus far. > > Currently, the only thing these new functions are being used for is to > display the season for a given date (northern hemisphere only; southern I'm > still working on). To test it, simply use date( "v" ); to display the > current season or for a given timestamp. I chose the letter "v" for > "vuodenaika", which is the Finnish word for "season". I can also send a > test PHP script I wrote so you can visually compare the seasonal equinoxes > identified with your calendar or whatever to verify its accuracy. That > reminds me, I still need to make that into a PHPT case.... > > The equinoxes are currently rounded to midnight of that given day, though > this can easily be changed to be accurate down to the second since the > functions are already in place. I'm not sure which would be better though, > so I figured I'd ask around and see what y'all think about that one. > > This is just one avenue I'm currently pursuing and I expect to be doing > much more as time permits. Professionally, I work as a PHP test engineer > for a major software company and most recently was working closely with > Pierre on testing and debugging issues with the Win32 5.3.3 and 5.2.14 > RC's. He hasn't seen any of my programming work as that's not what I do > here, nor have I discussed this SVN request with him since it's just for me > personally, but if you're looking for someone who can vouch for my character > and professionalism at least I'm sure he'd be willing to mention that if > asked. Just to clarify again the source development work I'm doing on the > PHP core/etc is just me acting on my own personal behalf and not for any > company/etc. > > > Please don't hesitate to ask if there's anything else you need from me to > move this application forward. Thanks! =) > > --Kris > > > 2010/8/10 Johannes Schlüter <johan...@php.net> > > On Mon, 2010-08-09 at 18:19 -0700, Kris Craig wrote: >> > Currently, I'm working on several parallel feature additions to the date >> extension. >> >> Can you please send some patches first? We like to see some work before >> handing out accounts. >> >> johannes >> >> >> >
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