64 bit date in 32 bit php ??
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From: "Michael A. Peters" on 19 Jan 2010 01:46 php 5.2.12 running in CentOS 5.x Unfortunately, both my server (xen linode) and my test server (crappy old dell I found in a field) are 32-bit. I need to work with some dates earlier than 1901 and I would really prefer to store them in *nix time in the database and use the date() function to format them for display when I need to. My understanding is that 32 bit php has a lower limit in 1901 and upper limit in 2038 for the date function. Is there a pcre / pecl / other wrapper that behaves identical to the date function but uses a 64 bit float in 32 bit php? Yes, the right thing to do is probably to use 64 bit, and if I could I would. A wrapper that just passes it off to date on 64 bit systems and to date on 32 bit systems within what data can handle and only does its magic on 32 bit systems with values beyond 32-bit date capabilities would be sweet.
From: Ashley Sheridan on 19 Jan 2010 08:00 On Mon, 2010-01-18 at 22:46 -0800, Michael A. Peters wrote: > php 5.2.12 running in CentOS 5.x > > Unfortunately, both my server (xen linode) and my test server (crappy > old dell I found in a field) are 32-bit. I need to work with some dates > earlier than 1901 and I would really prefer to store them in *nix time > in the database and use the date() function to format them for display > when I need to. > > My understanding is that 32 bit php has a lower limit in 1901 and upper > limit in 2038 for the date function. > > Is there a pcre / pecl / other wrapper that behaves identical to the > date function but uses a 64 bit float in 32 bit php? > > Yes, the right thing to do is probably to use 64 bit, and if I could I > would. A wrapper that just passes it off to date on 64 bit systems and > to date on 32 bit systems within what data can handle and only does its > magic on 32 bit systems with values beyond 32-bit date capabilities > would be sweet. > I've not used it, but the Pear Date class looks like it should do what you need. I've used other Pear classes before, and they are pretty easy to get to grips with, so I assume it should be the same for this one too. http://pear.php.net/package/Date Thanks, Ash http://www.ashleysheridan.co.uk
From: Richard Quadling on 19 Jan 2010 08:21 2010/1/19 Ashley Sheridan <ash(a)ashleysheridan.co.uk>: > On Mon, 2010-01-18 at 22:46 -0800, Michael A. Peters wrote: > >> php 5.2.12 running in CentOS 5.x >> >> Unfortunately, both my server (xen linode) and my test server (crappy >> old dell I found in a field) are 32-bit. I need to work with some dates >> earlier than 1901 and I would really prefer to store them in *nix time >> in the database and use the date() function to format them for display >> when I need to. >> >> My understanding is that 32 bit php has a lower limit in 1901 and upper >> limit in 2038 for the date function. >> >> Is there a pcre / pecl / other wrapper that behaves identical to the >> date function but uses a 64 bit float in 32 bit php? >> >> Yes, the right thing to do is probably to use 64 bit, and if I could I >> would. A wrapper that just passes it off to date on 64 bit systems and >> to date on 32 bit systems within what data can handle and only does its >> magic on 32 bit systems with values beyond 32-bit date capabilities >> would be sweet. >> > > > I've not used it, but the Pear Date class looks like it should do what > you need. I've used other Pear classes before, and they are pretty easy > to get to grips with, so I assume it should be the same for this one > too. > > http://pear.php.net/package/Date > > Thanks, > Ash > http://www.ashleysheridan.co.uk > > > php -r "$o = new DateTime('1066-10-14T14:30:00+0000'); echo $o->format('r');" Battle of Hastings. Just after 2:30 on the 14th of October 1066. As I understand things, the DateTime class avoids the 32bit issue entirely. Take a listen to the excellent PHP|Architect Summer Web cast from last year by Derick Rethans [1] & [2]. Regards, Richard. [1] http://phparch.com/webcasts [2] http://mtadata.s3.amazonaws.com/webcasts/20090828-date-time.wmv -- ----- Richard Quadling "Standing on the shoulders of some very clever giants!" EE : http://www.experts-exchange.com/M_248814.html Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 ZOPA : http://uk.zopa.com/member/RQuadling
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