Negative Date

[DonP]

I am trying to use the gmdate function to present dates that are in the Unix date/time format, however the dates are in the '50s so are negative numbers.

This works with more recent dates (equal or post 12/31/1969) but does not work with any before that:

[tt]gmdate("l, F jS, Y \\a\\t g:i:s A", $datetime);[/tt]

Is there a variant of this that can handle the Unix date/time as a negative number? Don
don@pc-homepage.com

http://www.pc-homepage.com/

Experienced in HTML, Perl, VBScript, PWS, IIS and Apache. Run OS/2 Warp 4, BeOS v5 and Windows NT/2000 (only when I have to!)

 

[sleipnir214]

Unix Epoch timestamps are unsigned integers, with 0 representing 1970-01-01 00:00:00. Negative numbers will will be interpreted as very large positive numbers.

Take a look at the Date PEAR class:

http://pear.php.net/package-info.php?pacid=57

Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

 

[rycamor]

You might want to visit

http://php.net/calendar

and

http://php.net/mcal

-------------------------------------------

My PostgreSQL FAQ --

http://brainscraps.com/faq/pg_my.html

 

[DonP]

Thanks for replying so quickly! Since the site is running on a hosted domain through an ISP, I don't have the option of compiling anything into PHP itself or editing the php.ini but if it can be run through my domain's account, one of these might work.

http://pear.php.net/package-info.php?pacid=57

looks especially promising although there was not a hit or clue on the site as to what to do with it or how to install it so I'm not sure if it will work for me. I know that answering questions about other sites is not the purpose of this forum so no need to answer but I am open to any suggestions about these or for any new ones, however the datetime IS in the Unix date/time format except that it's signed.

The database is MySQL. Don
don@pc-homepage.com

http://www.pc-homepage.com/

Experienced in HTML, Perl, VBScript, PWS, IIS and Apache. Run OS/2 Warp 4, BeOS v5 and Windows NT/2000 (only when I have to!)

 

[sleipnir214]

You can put the file anywhere, then include() it.

The class is documented (somewhat) in comments in the code. Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

 

[DonP]

Thanks again. I'll ask the developer of the IDE that I use to see if it can easily accomodate additional classes. It probably can. Don
don@pc-homepage.com

http://www.pc-homepage.com/

Experienced in HTML, Perl, VBScript, PWS, IIS and Apache. Run OS/2 Warp 4, BeOS v5 and Windows NT/2000 (only when I have to!)

 

[DonP]

It turns out that the Linux/Unix server using gmdate() will handle dates back to 1901 (using Unix date/time stamp as a negative number) but my Windows development platform has the limitation back to 1970, although I suppose that is well-known already. When I tried the suggestions above and could not get them to work, I found a simple solution in the form of another library:

[tt]

http://php.weblogs.com/adodb_date_time_library

[/tt]

It was easy to set up, uses all the same command line switches as gmdate and works both on Linux/Unix and Windows, and was a breeze to incorporate into the whole site (through the IDE) to use as needed. Don
don@pc-homepage.com

http://www.pc-homepage.com/

Experienced in HTML, Perl, VBScript, PWS, IIS and Apache. Run OS/2 Warp 4, BeOS v5 and Windows NT/2000 (only when I have to!)