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List:       phpdoc
Subject:    [PHP-DOC] #27788 [Opn]: array_multisort doesn't mantain index associations with numeric arrays
From:       derick () php ! net
Date:       2004-03-31 7:08:59
Message-ID: 20040331070859.15240.qmail () rn2 ! php ! net
[Download RAW message or body]

 ID:               27788
 Updated by:       derick@php.net
 Reported By:      mail at spybreak dot de
 Status:           Open
-Bug Type:         Feature/Change Request
+Bug Type:         Documentation problem
 Operating System: Win2K
 PHP Version:      4.3.4
 Assigned To:      andrei
 New Comment:

Making this a documentation problem, as it is the correct behavior.


Previous Comments:
------------------------------------------------------------------------

[2004-03-30 19:30:58] mail at spybreak dot de

Description:
------------
The manual says that array_multisort mantains key associations. This is
only true if the keys are strings. If the keys are integers on the
other hand, key association is not mantained. I don't think that this
is a bug since it's so obvious. But I wish feedback on this to clear
this issue up. Thanks alot!

Reproduce code:
---------------
<?
//names array. keys are user id's
$names[5]  = 'Peter';
$names[7]  = 'Jim';
$names[11] = 'Martin';
$names[33] = 'John';
$names[34] = 'Robert';

//age array. keys are user id's
$age[5]    = 15;
$age[7]    = 19;
$age[11]   = 54;
$age[33]   = 29;
$age[34]   = 17;

//sort names array by ages
array_multisort($age, $names);

var_dump($names);
?>

Expected result:
----------------
I expect this:

// _should_ return
//
// array
//   5  => 'Peter'
//   34 => 'Robert'
//   7  => 'Jim'
//   33 => 'John'
//   11 => 'Martin'

Actual result:
--------------
// returns the following for me
//
// array
//   0 => 'Peter'       
//   1 => 'Robert'
//   2 => 'Jim'   
//   3 => 'John'   
//   4 => 'Martin' 


------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=27788&edit=1
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