Edit report at http://bugs.php.net/bug.php?id=54530&edit=1
ID: 54530
Updated by: ahar...@php.net
Reported by: chatfielddaniel at googlemail dot com
Summary: strnatcasecmp treats alphanumeric values before
symbols
-Status: Open
+Status: Bogus
Type: Bug
-Package: Unknown/Other Function
+Package: Strings related
Operating System: Windows 7
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
Just like all of the other comparison functions, strnatcmp() and
strnatcasecmp() eventually fall back to a straight byte value by byte
value comparison if the "natural" alphanumeric sorting logic isn't
triggered. Since the underscore character has a higher character code
than any number or uppercase letter (and case-insensitive comparisons
are done on uppercased strings), it's always "after" letters and
numbers.
This behaviour isn't going to change.
Previous Comments:
------------------------------------------------------------------------
[2011-04-14 12:59:37] chatfielddaniel at googlemail dot com
Description:
------------
---
>From manual page: http://www.php.net/function.strnatcasecmp
---
The strnatcasecmp is set that '_' is after letters and numbers which is
illogical
and should be changed.
Test script:
---------------
echo strnatcasecmp('1','2');//-1
echo strnatcasecmp('_','2');//1 (incorrect)
echo strnatcasecmp('_','a');//1 (incorrect)
echo strnatcasecmp('a','b');//-1
echo strnatcasecmp(2,'a');//-1
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=54530&edit=1
