Bug #16926 Updated: Shuffle doesn't work

[joseppo]

 ID:   16926
 Updated by:   [EMAIL PROTECTED]
 Reported By:  [EMAIL PROTECTED]
 Status:   Feedback
 Bug Type: *Math Functions
 Operating System: WinXP
 PHP Version:  4.2.0
 New Comment:

Yes, I'm sure. I've tried running it from the command line with the
same result.
I've done a little more testing, and it seems that rand() seems to work
just fine, so that should more or less exclude the possibility of a bug
in srand().

I've also done a full reinstall (just to make sure) without any luck.


Previous Comments:


[2002-05-01 03:08:01] [EMAIL PROTECTED]

I could not reproduce this, are you sure the browser is not caching
your page?

Derick



[2002-04-30 08:14:09] [EMAIL PROTECTED]

As of PHP 4.2.0, shuffle() doesn't seem to work for me.
The following code always produce the same output:
function make_seed() { // Taken directly from the manual
list($usec, $sec) = explode(' ', microtime());
return (float) $sec + ((float) $usec * 10);
}

srand(make_seed());
$arr = range(1, 10);
shuffle($arr);
print_r($arr);


Further testing shows that I get the same output if I uncomment the
srand(), if that's any help.




-- 
Edit this bug report at http://bugs.php.net/?id=16926edit=1

Bug #16926: Shuffle doesn't work

[joseppo]

From: [EMAIL PROTECTED]
Operating system: WinXP
PHP version:  4.2.0
PHP Bug Type: *Math Functions
Bug description:  Shuffle doesn't work

As of PHP 4.2.0, shuffle() doesn't seem to work for me.
The following code always produce the same output:
function make_seed() { // Taken directly from the manual
list($usec, $sec) = explode(' ', microtime());
return (float) $sec + ((float) $usec * 10);
}

srand(make_seed());
$arr = range(1, 10);
shuffle($arr);
print_r($arr);


Further testing shows that I get the same output if I uncomment the
srand(), if that's any help.
-- 
Edit bug report at http://bugs.php.net/?id=16926edit=1
-- 
Fixed in CVS:http://bugs.php.net/fix.php?id=16926r=fixedcvs
Fixed in release:http://bugs.php.net/fix.php?id=16926r=alreadyfixed
Need backtrace:  http://bugs.php.net/fix.php?id=16926r=needtrace
Try newer version:   http://bugs.php.net/fix.php?id=16926r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=16926r=support
Expected behavior:   http://bugs.php.net/fix.php?id=16926r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=16926r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=16926r=submittedtwice