# about shuffle()

- Thread: https://externals.io/message/22995
- Original archive: https://news-web.php.net/php.internals/22995
- Started by xuefengal on 2006-04-27T19:19:30+00:00
- Messages: 2
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---

## #22995 — xuefengal — 2006-04-27T19:19:30+00:00

URL: https://externals.io/message/22995#22995

hi,all

i have a problem. 

try this code on win2003,iis6,php5.1.1(isapi)
----------------------------------------
function _1_2($n) {
 $tmp = array();
 return shuffle($tmp = range(1,$n);
}
echo('<pre>'.print_r(_1_2(8),True).'</pre>');
----------------------------------------
result
Array
(
    [0] => 6
    [1] => 3
    [2] => 7
    [3] => 4
    [4] => 8
    [5] => 2
    [6] => 1
    [7] => 5
)
----------------------------------------
after,try code on FreeBSD6.0r apache2.0.55,php5.1.2(cli)
result is 
----------------------------------------
Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
    [5] => 6
    [6] => 7
    [7] => 8
)
----------------------------------------

manual said [bool shuffle ( array &array )]

modify code
----------------------------------------
function _1_2($n) {
 $tmp = array();
 $tmp = range(1,$n);
 return shuffle($tmp);
}
----------------------------------------

it looks good. why on win2003,iis6 result is correct too.

----------------------------------------
OS=Win2003
IE Version=6.0.3790.1830
E:\Inetpub\php>php -v
PHP 5.1.1 (cli) (built: Nov 27 2005 21:39:02)
Copyright (c) 1997-2005 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2005 Zend Technologies
----------------------------------------
[/home/htdocs/]%->uname -a
FreeBSD xfxy.org 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Sun Apr  9 17:54:38 UTC 2006     root@xxx:/usr/src/sys/i386/compile/devel  i386
[/home/htdocs/]%->php -v
PHP 5.1.2 (cli) (built: Apr  8 2006 20:29:15)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
[/home/htdocs/]%->httpd -v
Server version: Apache/2.0.55
Server built:   Apr  8 2006 18:41:44
[/home/htdocs/]%->


　　　　　　　　xuefengal
　　　　　　　　xuefengal@sohu.com
　　　　　　　　　　2006-04-28

---

## #22996 — Hannes Magnusson — 2006-04-27T19:31:48+00:00

URL: https://externals.io/message/22995#22996 · In reply to: #22995

Turn on E_STRICT.
Read php.net/shuffle again.
Read php.net/mailing-lists again.
And at last, if you still have a problem, read
http://bugs.php.net/how-to-report.php

-Hannes



> hi,all
>
> i have a problem.
>
> try this code on win2003,iis6,php5.1.1(isapi)
> ----------------------------------------
> function _1_2($n) {
>  $tmp = array();
>  return shuffle($tmp = range(1,$n);
> }
> echo('<pre>'.print_r(_1_2(8),True).'</pre>');
> ----------------------------------------
> result
> Array
> (
>     [0] => 6
>     [1] => 3
>     [2] => 7
>     [3] => 4
>     [4] => 8
>     [5] => 2
>     [6] => 1
>     [7] => 5
> )
> ----------------------------------------
> after,try code on FreeBSD6.0r apache2.0.55,php5.1.2(cli)
> result is
> ----------------------------------------
> Array
> (
>     [0] => 1
>     [1] => 2
>     [2] => 3
>     [3] => 4
>     [4] => 5
>     [5] => 6
>     [6] => 7
>     [7] => 8
> )
> ----------------------------------------
>
> manual said [bool shuffle ( array &array )]
>
> modify code
> ----------------------------------------
> function _1_2($n) {
>  $tmp = array();
>  $tmp = range(1,$n);
>  return shuffle($tmp);
> }
> ----------------------------------------
>
> it looks good. why on win2003,iis6 result is correct too.
>
> ----------------------------------------
> OS=Win2003
> IE Version=6.0.3790.1830
> E:\Inetpub\php>php -v
> PHP 5.1.1 (cli) (built: Nov 27 2005 21:39:02)
> Copyright (c) 1997-2005 The PHP Group
> Zend Engine v2.1.0, Copyright (c) 1998-2005 Zend Technologies
> ----------------------------------------
> [/home/htdocs/]%->uname -a
> FreeBSD xfxy.org 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Sun Apr  9 17:54:38 UTC 2006     root@xxx:/usr/src/sys/i386/compile/devel  i386
> [/home/htdocs/]%->php -v
> PHP 5.1.2 (cli) (built: Apr  8 2006 20:29:15)
> Copyright (c) 1997-2006 The PHP Group
> Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
> [/home/htdocs/]%->httpd -v
> Server version: Apache/2.0.55
> Server built:   Apr  8 2006 18:41:44
> [/home/htdocs/]%->
>
>
> xuefengal
> 　　　　　　　　xuefengal@sohu.com
> 2006-04-28