ID: 12243
Updated by: jeroen
Reported By: [EMAIL PROTECTED]
Status: Open
Bug Type: Variables related
Operating System: FreeBSD 4.1.1-STABLE
PHP Version: 4.0.6
New Comment:
So you say that
var_dump(5000000000) -> int(2147483647)
And not, as expected:
float(5000000000)
PHP uses some system routines for that, this isn't coded in PHP.
Zend/zend_language_scanner.l:line_1000:
(...)
errno = 0;
/*long*/ lval = strtol(the_digit_as_a_string, NULL, 0);
if (errno == ERANGE) { /* overflow */
(...)
If strtol is doing his job right, there is no bug here...
Are you sure this didn't happen with the older PHP-version, on the same box? Or is it
just another pentium-bug (j/k)
It would help if you try to execute these lines in C, and see wether ERANGE is set
correctly. If it is, I'm lost.
By the way, please try also some other values than 5 billion, some really huge values,
and also some really negative values. Please use var_dump on them.
Previous Comments:
------------------------------------------------------------------------
[2001-07-19 01:59:05] [EMAIL PROTECTED]
at your service
------------------------------------------------------------------------
[2001-07-19 00:23:14] [EMAIL PROTECTED]
Absolutely. I've written just one test script with just those 2 lines in it. I copied
this same file to 3 servers now - the 2 that I've already mentioned plus another
FreeBSD server (identical in hardware and OS config to the other) running 4.03PL1.
The only one of these servers that prints out 2147483647 is the FreeBSD server running
4.06 (also did it with 4.05). The other 2 servers print out 5000000000. I also
remember another location in my site that was affected by this bug, and I can
GUARANTEE that it did not occur on the affected server until I updated it to 4.05.
Please change the status of this bug report back to open.
------------------------------------------------------------------------
[2001-07-19 00:15:34] [EMAIL PROTECTED]
are you sure you don't initialize the variable with 5 Million on the Linux box?
------------------------------------------------------------------------
[2001-07-19 00:03:32] [EMAIL PROTECTED]
If this is strictly hardware related, then how come when I run the exact same 2 lines
on another box running linux, I get the correct 5 billion number displayed? The linux
box is using an AMD 450 Mhz K6, and the FreeBSD box is using a Pentium 3-600. I am
not able to back up to 4.03PL1 on the FreeBSD box, but I am quite sure that this
problem did not occur back when it was loaded.
------------------------------------------------------------------------
[2001-07-18 23:52:41] [EMAIL PROTECTED]
1) longlong != double
2) the scale is HW-dependant, i. e. you need a 64-bit HW to get native support for
64-bit numbers. that's how it's always been in PHP. there was no change WIRT this.
5,000,000,000 is clearly more than your HW can take, so it's clipped to the closest
possible value.
------------------------------------------------------------------------
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/?id=12243
Edit this bug report at http://bugs.php.net/?id=12243&edit=1
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