Re: [PHP] Dates before 1970
Call me crazy, but I think that:
$time = 0x; //largest INT possible
echo date('m/d/Y h:i:s a', $time);
would be very revealing.
On Thu, April 13, 2006 10:26 pm, Suhas wrote:
This will definitely solve one way but still other is there,
How to get that -ve number which starts at 1/1/1900 at 00:00 AM = 0
I need to be able to convert back and forth as there are some
calculations to be done on date field,
But this is very interesting..
Thx
SP
On 4/13/06, Rasmus Lerdorf [EMAIL PROTECTED] wrote:
Suhas wrote:
Hello,
I have a project that deals with the date time stamps since 1900
(and
past), any suggestions about a good class that handles Date Time
Format before 1970. I really like date() function and want
something
similar.
date() uses Unix timestamps which on most Unix platforms goes from
-MAX_INT to MAX_INT which means the date range is actually
12:45:52 12/13/1901 to 07:14:07 01/18/2038. So you might be able to
get
away with it.
You can check it with:
echo date(h:i:s m/d/Y,-2147483648);
echo date(h:i:s m/d/Y, 2147483647);
Windows, not being Unix, doesn't understand that the timestamp can
be
negative, although I think someone fixed that in PHP 5. In my 11+
years
of PHP I have yet to run PHP on Windows, so I wouldn't know.
-Rasmus
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Re: [PHP] Dates before 1970
At 6:43 PM -0500 4/17/06, Richard Lynch wrote:
Call me crazy, but I think that:
$time = 0x; //largest INT possible
echo date('m/d/Y h:i:s a', $time);
would be very revealing.
H.
Is: 12/31/1969 06:59:59 pm
Yes, it is -- I remember what I was doing then. It was six months
after I got out of the US Army.
And,
$time = -0x; //smallest INT possible
echo date('m/d/Y h:i:s a', $time);
Is: 12/13/1901 03:45:52 pm
Close to when I was born. :-)
Whereas,
$time = 0;
echo date('m/d/Y h:i:s a', $time);
Is: 12/31/1969 07:00:00 pm
But, what point is there in all this?
tedd
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[PHP] Dates before 1970
Hello, I have a project that deals with the date time stamps since 1900 (and past), any suggestions about a good class that handles Date Time Format before 1970. I really like date() function and want something similar. Thanks in advance! SP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Dates before 1970
Suhas wrote: Hello, I have a project that deals with the date time stamps since 1900 (and past), any suggestions about a good class that handles Date Time Format before 1970. I really like date() function and want something similar. date() uses Unix timestamps which on most Unix platforms goes from -MAX_INT to MAX_INT which means the date range is actually 12:45:52 12/13/1901 to 07:14:07 01/18/2038. So you might be able to get away with it. You can check it with: echo date(h:i:s m/d/Y,-2147483648); echo date(h:i:s m/d/Y, 2147483647); Windows, not being Unix, doesn't understand that the timestamp can be negative, although I think someone fixed that in PHP 5. In my 11+ years of PHP I have yet to run PHP on Windows, so I wouldn't know. -Rasmus -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Dates before 1970
This will definitely solve one way but still other is there, How to get that -ve number which starts at 1/1/1900 at 00:00 AM = 0 I need to be able to convert back and forth as there are some calculations to be done on date field, But this is very interesting.. Thx SP On 4/13/06, Rasmus Lerdorf [EMAIL PROTECTED] wrote: Suhas wrote: Hello, I have a project that deals with the date time stamps since 1900 (and past), any suggestions about a good class that handles Date Time Format before 1970. I really like date() function and want something similar. date() uses Unix timestamps which on most Unix platforms goes from -MAX_INT to MAX_INT which means the date range is actually 12:45:52 12/13/1901 to 07:14:07 01/18/2038. So you might be able to get away with it. You can check it with: echo date(h:i:s m/d/Y,-2147483648); echo date(h:i:s m/d/Y, 2147483647); Windows, not being Unix, doesn't understand that the timestamp can be negative, although I think someone fixed that in PHP 5. In my 11+ years of PHP I have yet to run PHP on Windows, so I wouldn't know. -Rasmus -- Contact @ Suhas Pharkute. 208 830 8915 (C) 208 429 6943 (H) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Dates before 1970
I have a project that deals with the date time stamps since 1900 (and past), any suggestions about a good class that handles Date Time Format before 1970. I really like date() function and want something similar. If you're using a database at all, most of them will handle any sort of dates. -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Dates then 1970
What function(s) would you use if you want to take someone's birth day and format it on display. I have always used strtotime, then strftime but it doesn't work if someone was born in 1939. strtotime returns -1. What function would you use to take the input string 1939/11/23 and get the timestamp so I can use functions like strftime or date. Thanks, Mark. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Dates then 1970
Mark McCulligh wrote: What function(s) would you use if you want to take someone's birth day and format it on display. I have always used strtotime, then strftime but it doesn't work if someone was born in 1939. strtotime returns -1. What function would you use to take the input string 1939/11/23 and get the timestamp so I can use functions like strftime or date. You'll have to tear it apart and do the math youself. Current year minus the first four digits. If current month/day is less than month/day from string, then subtract one (hasn't reached birthday yet). If you're storing these dates in a database, you can use your query to calculate the age (unless it used unix timestamps, also). -- ---John Holmes... Amazon Wishlist: www.amazon.com/o/registry/3BEXC84AB3A5E/ php|architect: The Magazine for PHP Professionals www.phparch.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
