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Doc Bug #69434 php_uname('m') reports unexpected machine type
Submitted: 2015-04-13 07:17 UTC Modified: 2021-08-09 14:33 UTC
Votes:5
Avg. Score:1.8 ± 1.2
Reproduced:2 of 3 (66.7%)
Same Version:1 (50.0%)
Same OS:1 (50.0%)
From: tm8544 at hotmail dot com Assigned:
Status: Open Package: *General Issues
PHP Version: 5.6.7 OS: Windows
Private report: No CVE-ID: None
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 [2015-04-13 07:17 UTC] tm8544 at hotmail dot com 
Description:
------------
PHP_uname('m') gives wrong machine type.
In my case, processor is Intel Pentium 4, but PHP_uname('m')gives AMD64.




Test script:
---------------
<?php
echo php_uname('m');
?>

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 [2015-04-13 07:58 UTC] tm8544 at hotmail dot com 
SYSTEM_INFO structure
PROCESSOR_ARCHITECTURE_AMD64 stands for x64 (AMD or Intel)

I suggest that instead of reporting "AMD64" PHP_uname('m') would report "x64".
 [2015-04-13 08:18 UTC] derick@php.net 
I believe it should return x86_64 - like it does on Linux:

php -r 'echo php_uname("m");'
x86_64
 [2015-04-13 08:34 UTC] krakjoe@php.net 
To change it would be a considerable BC break though, http://lxr.php.net/xref/PHP_TRUNK/ext/standard/info.c#php_get_windows_cpu has been like that for a long time.

Not sure what is the best thing to do, it would be nice if they were consistent with each other, but I don't see a good way to actually do it.
 [2015-04-13 09:24 UTC] ab@php.net 
IMHO this shouldn't be changed. AMD64 is historically a synonymous for any 64-bit architecture. This is a common terminology, on Windows it's a standard keyword, on some Linux distros  (fe Gentoo) as well.

Thanks.
 [2016-03-28 22:58 UTC] walts at jtechmedical dot com 
I'm also seeing php_uname() reporting the wrong machine information

example output from php_uname()
Windows NT ELITE800 6.2 build 9200 (Windows 8 Professional Edition) i586

vs as reported from the substring in the user agent
Windows NT 10.0; WOW64

Machine is actually Windows NT 10.0; WOW64 so it seems something isn't reporting or parsing correctly in php_uname().
 [2016-03-28 23:00 UTC] walts at jtechmedical dot com 
I should mention the PHP version is 5.5.30
 [2021-08-09 14:33 UTC] cmb@php.net
-Summary: php_uname('m') reports wrong machine type +Summary: php_uname('m') reports unexpected machine type -Type: Bug +Type: Documentation Problem -Operating System: Windows 7 x64 +Operating System: Windows
 [2021-08-09 14:33 UTC] cmb@php.net 
> To change it would be a considerable BC break though, 

Right.  Changing to doc problem.

> Machine is actually Windows NT 10.0; WOW64

No.  WOW64 means that the browser is a 32bit application running
on a 64bit Windows.
 
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