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Bug #43750 stristr modifies strings
Submitted: 2008-01-04 16:12 UTC Modified: 2008-01-10 14:31 UTC
From: samuel at slbdata dot se Assigned:
Status: Closed Package: Strings related
PHP Version: 6CVS-2008-01-04 (snap) OS: Ubuntu 7.10
Private report: No CVE-ID: None
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From: samuel at slbdata dot se
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 [2008-01-04 16:12 UTC] samuel at slbdata dot se 
Description:
------------
stristr converts it's parameters to lower case (non-ASCII characters are not changed though). This happens with php6.0-200801022130 and php6.0-200801041530 and the locale set to sv_SE.UTF-8

This might be a regression of bug #3890


Reproduce code:
---------------
<?php
  
$a = "ABC???";
$b = "PHP";

stristr($a, $b);

echo "$a\n$b\n";


Expected result:
----------------
ABC???
PHP

Actual result:
--------------
abc???
php

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 [2008-01-08 11:37 UTC] felipe@php.net 
Index: string.c
===================================================================
RCS file: /repository/php-src/ext/standard/string.c,v
retrieving revision 1.659
diff -u -u -r1.659 string.c
--- string.c    31 Dec 2007 07:12:16 -0000      1.659
+++ string.c    8 Jan 2008 11:33:56 -0000
@@ -2526,6 +2526,9 @@
                return;
        }
 
+       SEPARATE_ZVAL(haystack);
+       SEPARATE_ZVAL(needle);
+
        if (Z_TYPE_PP(haystack) != IS_UNICODE && Z_TYPE_PP(haystack) != IS_STRING) {
                convert_to_text_ex(haystack);
        }
 [2008-01-08 14:25 UTC] samuel at slbdata dot se 
It works correctly with your patch.

Thank you!
 [2008-01-10 14:31 UTC] tony2001@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 
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