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Bug #42831 function number_format() seems to return a wrong value
Submitted: 2007-10-02 16:55 UTC Modified: 2007-11-21 03:58 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:0 of 1 (0.0%)
From: naweokawa at free dot fr Assigned: ab5602 (profile)
Status: Not a bug Package: Strings related
PHP Version: 5.2.4 OS: Solaris 10
Private report: No CVE-ID: None
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 [2007-10-02 16:55 UTC] naweokawa at free dot fr
Description:
------------
When you use the function number_format with a float value, it seems to returns a value INPUT_FLOAT*100



Reproduce code:
---------------
$num2=123456.55;

number_format($num2 , 2, ',', ' ');

// OUTPUT
output : 12 345 655,00 (should be 123 456,55 ) 


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 [2007-10-03 08:19 UTC] tony2001@php.net
Cannot reproduce.
 [2007-10-03 09:13 UTC] naweokawa at free dot fr
it seems to run correctly on Linux 
(tested on Linux xxx 2.6.8-2-386 #1 Tue Aug 16 12:46:35 UTC 2005 i686 GNU/Linux)

Reproduce code:
---------------
$num2=123456.55;

echo number_format($num2 , 2, ',', ' ');
echo "<br />\n";
echo number_format($num2 , 3, ',', ' ');

// OUTPUT
123 456,55  (OK)
123 456,550 (OK)

However on Solaris10 (SunOS xxx 5.10 Generic_118855-33 i86pc i386 i86pc)

Reproduce code:
---------------
$num2=123456.55;

echo number_format($num2 , 2, ',', ' ');
echo "<br />\n";
echo number_format($num2 , 3, ',', ' ');

// OUTPUT
12 345 655,00 (KO)
123 456 550,000 (KO)


- The Locale settings shouldn't used for this function ?
- php-5.2.4 compiled with cc: Sun C 5.8 2005/10/13
 [2007-10-03 09:47 UTC] tony2001@php.net
Try compiling with GCC.
 [2007-10-03 10:25 UTC] naweokawa at free dot fr
Always same issue with (GCC) 3.4.3 (csl-sol210-3_4-branch+sol_rpath)
 [2007-10-03 10:56 UTC] tony2001@php.net
GCC 3.4.3 is quite old and is known to have problems on SPARC.
Try with something newer (the latest available would be great).
 [2007-10-03 21:00 UTC] naweokawa at free dot fr
This issue doesn't seems appear on Solaris 10 x86 32 bits. 
But it persits on Solaris 10 /  AMD64 compiled on full 64bits.
 [2007-10-11 00:30 UTC] ab5602@php.net
Hi, I cannot reproduce either.

$ uname -a
SunOS opteron 5.10 Generic_118855-14 i86pc i386 i86pc
$ isainfo -v
64-bit amd64 applications
        sse3 sse2 sse fxsr amd_3dnowx amd_3dnow amd_mmx mmx cmov amd_sysc cx8 
        tsc fpu 
32-bit i386 applications
        sse3 sse2 sse fxsr amd_3dnowx amd_3dnow amd_mmx mmx cmov amd_sysc cx8 
        tsc fpu 
$ ./php -v 
PHP 5.2.5-dev (cli) (built: Oct 10 2007 19:51:01) 
Copyright (c) 1997-2007 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies
$ cat ./num.php 
<?
$num2=123456.55;
echo number_format($num2 , 2, ',', ' ');
?>
$ ./php ./num.php 
123 456,55
 [2007-10-11 14:45 UTC] naweokawa at free dot fr
So, I re-test the code again :

$ cat num.php
<?php
$num2=123456.55;
echo number_format($num2 , 2, ',', ' ') ."\n";
?>

$ /HOME/php5.2-200710111030_gcc_64/bin/php -f ./num.php
12 345 655,00

$ file /HOME/php5.2-200710111030_gcc_64/bin/php
/HOME/php5.2-200710111030_gcc_64/bin/php:       ELF 64-bit LSB executable AMD64 Version 1 [SSE2 SSE FXSR FPU], dynamically linked, not stripped

Not really same flags like you : 
$ isainfo -v
64-bit amd64 applications
        sse2 sse fxsr amd_3dnowx amd_3dnow amd_mmx mmx cmov amd_sysc cx8 tsc
        fpu
32-bit i386 applications
        sse2 sse fxsr amd_3dnowx amd_3dnow amd_mmx mmx cmov amd_sysc cx8 tsc
        fpu

$ uname -a
SunOS tdb 5.10 Generic_118855-33 i86pc i386 i86pc

$ /HOME/php5.2-200710111030_gcc_64/bin/php -v
PHP 5.2.5-dev (cli) (built: Oct 11 2007 14:51:34)
Copyright (c) 1997-2007 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies

$ ldd /HOME/php5.2-200710111030_gcc_64/bin/php
        librt.so.1 =>    /lib/64/librt.so.1
        libresolv.so.2 =>        /lib/64/libresolv.so.2
        libm.so.2 =>     /lib/64/libm.so.2
        libnsl.so.1 =>   /lib/64/libnsl.so.1
        libsocket.so.1 =>        /lib/64/libsocket.so.1
        libz.so.1 =>     /usr/lib/64/libz.so.1
        libxml2.so.2 =>  /usr/local/lib/libxml2.so.2
        libpthread.so.1 =>       /lib/64/libpthread.so.1
        libc.so.1 =>     /lib/64/libc.so.1
        libaio.so.1 =>   /lib/64/libaio.so.1
        libmd5.so.1 =>   /lib/64/libmd5.so.1
        libmp.so.2 =>    /lib/64/libmp.so.2
        libscf.so.1 =>   /lib/64/libscf.so.1
        libdoor.so.1 =>  /lib/64/libdoor.so.1
        libuutil.so.1 =>         /lib/64/libuutil.so.1

All is OK on 32bits compilation.

That's a zone solaris on Sun Fire v20z (Dual CPU AMD64  Socket940).

Greetings.
 [2007-10-13 17:12 UTC] ab5602@php.net
Hi, thanks for the update.  I do have the binary linked against the 64 libs but still no luck reproducing the problem with the current snapshot.  If I can find some time, I'll try and replicate your setup better, including your newer OS patch level.

$ ldd ./php
        librt.so.1 =>    /lib/64/librt.so.1
        libresolv.so.2 =>        /lib/64/libresolv.so.2
        libm.so.2 =>     /lib/64/libm.so.2
        libnsl.so.1 =>   /lib/64/libnsl.so.1
        libsocket.so.1 =>        /lib/64/libsocket.so.1
        libc.so.1 =>     /lib/64/libc.so.1
        libaio.so.1 =>   /lib/64/libaio.so.1
        libmd5.so.1 =>   /lib/64/libmd5.so.1
        libmp.so.2 =>    /lib/64/libmp.so.2
        libscf.so.1 =>   /lib/64/libscf.so.1
        libdoor.so.1 =>  /lib/64/libdoor.so.1
        libuutil.so.1 =>         /lib/64/libuutil.so.1
$ ./php ./num.php 
123 456,55
 [2007-11-21 03:58 UTC] ab5602@php.net
I have tried under several other 64-bit Solaris systems with similar specs, but am still unable to reproduce this.
 
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