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Bug #44296 Incorrect time_t for x86-64
Submitted: 2008-02-29 21:09 UTC Modified: 2008-03-03 08:11 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: rolosworld at gmail dot com Assigned:
Status: Closed Package: Date/time related
PHP Version: 5.2.5 OS: gentoo
Private report: No CVE-ID: None
 [2008-02-29 21:09 UTC] rolosworld at gmail dot com
Description:
------------
Linux localhost 2.6.22-hardened-r8 #2 SMP Tue Dec 4 21:57:04 CST 2007 x86_64 Dual-Core AMD Opteron(tm) Processor 1210 AuthenticAMD GNU/Linux

Im having problems with the date functions, seems the time_t used by php is 32bit, but the time_t of the system is 64bit.

PHP uses 64bit integers so php is compiled for 64bit.

To check the system time_t:

#include <cstdio>
#include <ctime>

int main ()
{
  printf ("Size of time_t %d.\n", sizeof(time_t));
  return 0;
}

g++ t.cpp -o t
OUTPUT:
Size of time_t 8.

g++ -m32 t.cpp -o t
OUTPUT:
Size of time_t 4.



Reproduce code:
---------------
<?php
echo "size: ",PHP_INT_SIZE,"\n";
echo "max: ",PHP_INT_MAX,"\n";
echo "mktime1: ",mktime(21,14,7,1,18,2038),"\n";
echo "mktime1: ",mktime(21,14,8,1,18,2038),"\n";
?>


Expected result:
----------------
size: 8
max: 9223372036854775807
mktime1: 2147483647
mktime2: 2147483648


Actual result:
--------------
size: 8
max: 9223372036854775807
mktime1: 2147483647
mktime2:


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 [2008-03-03 08:11 UTC] derick@php.net
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

This was fixed two weeks ago in CVS.
 
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