#19343 [Fbk->NoF]: array_rand does not return keys randomly

ID: 19343 Updated by: php-bugs@lists.php.net Reported By: catch@sonaware.net -Status: Feedback +Status: No Feedback Bug Type: Arrays related Operating System: WinXP PHP Version: 4.2.3 New Comment: No feedback was provided for this bug for over 2 weeks, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". Previous Comments: ------------------------------------------------------------------------ [2002-11-04 18:43:17] iliaa@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-latest.zip I've just tested this function using latest CVS (unstable) in Windows XP. The code from your example has worked properly. Therefor I am closing the bug report. ------------------------------------------------------------------------ [2002-11-04 16:34:28] catch@sonaware.net I see that another person has reproduced the bug. In my original submission I specified my OS as Windows XP. iliaa@php.net may have not tested the function on windows, therefore I think it warrants reopening. My example is sufficient to quickly reproduce the bug. ------------------------------------------------------------------------ [2002-10-04 17:23:37] matthias.thalmann@sciontec.com Well - I experienced the same problems (array_rand() is [still] not random) in a Windows environment as catch@sonaware.net does. I actually was looking forward to a new release as this 'bug' was reported to be corrected and found the 4.2.3 release to act the same wrong way than 'before'. This must be a problem on the Windows side, for in the Linux environment I really get random values ... ------------------------------------------------------------------------ [2002-09-17 22:08:34] iliaa@php.net Sorry, but the bug system is not the appropriate forum for asking support questions. Your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php Thank you for your interest in PHP. I've tried this a few dosen times and the results were quite random. Please keep in mind that with a small array, such as the one in your example, there are only 24 possible combinations. Which means, that on average every 24th run you'll get an 'unsorted' array. ------------------------------------------------------------------------ [2002-09-10 14:09:42] catch@sonaware.net I called array_rand($my_array, count($my_array)). I expected array_rand to return the keys of $my_array in random order. I actually received the keys in almost the same order each time. $my_array was a 4 element array and the third element's key never changed position. I tried using srand also, but it produced same results. On an older version of php(4.1.2) the function worked as expected. script on WinXP php4.2.3: $numbers = range (1,4); $rand_keys = array_rand ($numbers, count($numbers)); foreach ($rand_keys as $val) { print $numbers[$val]."\n"; } ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=19343&edit=1