Bug #14591 Updated: uasort mixes array with equal elements
| From: | hholzgra@php.net | Date: | Wed, 19 Dec 2001 00:24:23 +0000 |
| Subject: | Bug #14591 Updated: uasort mixes array with equal elements | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-74324@lists.php.net to get a copy of this message | ||
ID: 14591
Updated by: hholzgra
Reported By: jan@horde.org
Old Status: Open
Status: Bogus
Bug Type: Arrays related
Operating System: Linux/Windows
PHP Version: 4.1.0
New Comment:
and the problem is ...?
by returning all zeros you made perfectly clear
that you don't care about the order of elements
in your array ;)
Previous Comments:
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[2001-12-18 17:03:19] jan@horde.org
If you call uasort with a function that always returns 0 (elements equal) you get a totally screwed
array returned.
<?php
function mysort($a, $b)
{
return 0;
}
$a = array('h', 's', 'i', 'c', 'q',
'm');
var_dump($a);
uasort($a, 'mysort');
var_dump($a);
?>
returns:
array(6) {
[0]=>
string(1) "h"
[1]=>
string(1) "s"
[2]=>
string(1) "i"
[3]=>
string(1) "c"
[4]=>
string(1) "q"
[5]=>
string(1) "m"
}
array(6) {
[1]=>
string(1) "s"
[2]=>
string(1) "i"
[3]=>
string(1) "c"
[4]=>
string(1) "q"
[5]=>
string(1) "m"
[0]=>
string(1) "h"
}
------------------------------------------------------------------------
Edit this bug report at http://bugs.php.net/?id=14591&edit=1