From:             chrisrogers at planetunreal dot com
Operating system: Windows
PHP version:      4.3.4
PHP Bug Type:     Math related
Bug description:  rand() generates even-odd-even-odd numbers

Description:
------------
The rand() function under Windows XP Pro and possibly other Windows OSs
generates numbers in a strict even-odd-even-odd pattern.  The pattern
doesn't occur on *nix OSs

Reproduce code:
---------------
<?php

for (i = 0; i < 100; i++)

    echo rand()."<br />\n";

?>

Expected result:
----------------
expected numbers with no noticable pattern

Actual result:
--------------
numbers were in an even-odd-even-odd pattern

-- 
Edit bug report at http://bugs.php.net/?id=27355&edit=1
-- 
Try a CVS snapshot (php4):  http://bugs.php.net/fix.php?id=27355&r=trysnapshot4
Try a CVS snapshot (php5):  http://bugs.php.net/fix.php?id=27355&r=trysnapshot5
Fixed in CVS:               http://bugs.php.net/fix.php?id=27355&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=27355&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=27355&r=needtrace
Need Reproduce Script:      http://bugs.php.net/fix.php?id=27355&r=needscript
Try newer version:          http://bugs.php.net/fix.php?id=27355&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=27355&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=27355&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=27355&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=27355&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=27355&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=27355&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=27355&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=27355&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=27355&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=27355&r=float

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