On Nov 17, 2011, at 10:01 AM, Tedd Sperling <tedd.sperling@xxxxxxxxx>
wrote:
On Nov 15, 2011, at 2:54 PM, Steven Staples wrote:
<tamouse.lists@xxxxxxxxx> sent:
<tedd.sperling@xxxxxxxxx> wrote:
PS: I know it's not Friday, but this question came up in class
yesterday and I thought maybe all of you might like to guess why
null is Wednesday?
Wait.. What??
$ php -r 'echo date("l",NULL),"\n";'
Wednesday
Cos:
$ php -r 'echo date("r",NULL),"\n";'
Wed, 31 Dec 1969 18:00:00 -0600
(Personally, I would have thought Thursday should be NULL, but
that's
just me. And Thursday.)
Actually, It *is* Thursday if you use UTC:
$ TZ=UTC php -r 'echo date("r",NULL),"\n";'
Thu, 01 Jan 1970 00:00:00 +0000
:P
Perfect example of Tedd's last comment about being proven wrong
(even though TECHNICALLY it isn't)
Good job :)
To all:
Okay, so now that we have had people reply, here's my take.
The Unix timestamp started on 01 Jan 1970 00:00:00 +0000 -- and that
was a Thursday.
The second before (i.e., 31 December, 1969 23:59:59:59 + 0000) was
null, which was Wednesday.
Now one might argue that everything before was null and I could
accept that. But here's my code and reasoning, please follow:
$string = null;
$seconds = strtotime($string); // change string into seconds
date = getdate($seconds); // change seconds into a date
$computedDate = $date['mday'] . ' ' . $date['month'] . ', ' . $date
['year'] . ' : ' .$date['weekday'];
echo($computedDate); // show date
Thus, null is Wednesday.
Now, why is this wrong?
Cheers,
tedd
_____________________
tedd@xxxxxxxxxxxx
http://sperling.com
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That's just it -- it's not wrong -- it's just local
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