From: tokul at users dot sourceforge dot net
Operating system: Linux Debian Etch
PHP version: 5CVS-2007-09-03 (snap)
PHP Bug Type: Scripting Engine problem
Bug description: Broken classes and method names in Turkish locale
Description:
------------
PHP zend_str_tolower() is locale insensitive on Windows and locale
(LC_CTYPE) sensitive on other platforms. It causes case sensitivity
problems in class and method names with Turkish locale on Linux, because
Turkish locale has case sensitivity rules that differ from US English
rules. Programmers make mistake by assuming that Latin small letter i is
always equal to Latin capital letter i.
Issue can be fixed by writing tolower() function alternative that is not
LC_CTYPE sensitive. My tests show that if zend_str_tolower() is modified to
do locale insensitive case conversion, basic PHP install passes 'make test'
without any additional issues and Zend/bench.php does not show performance
decrease.
My code modifications are based on program licensed under GPL. locale
insensitive tolower() takes only 5 lines in C. I can post link to patch, if
you can use GPL code. If you can't do that, I can explain your programmers
how locale insensitive tolower() works and you can write own function.
I know about 40086, 35583, 35050 and 18556 bug reports, but these bug
reports are closed and it looks strange, if you don't fix the issue when
interpreter works correctly on Windows and BSD and fix takes less than 10
lines.
Tested PHP 5.2-200709030430 and PHP6-200709030430 (unicode.semantics =
off) snapshot. PHP6-200709030430 with unicode.semantics=on is not
affected.
If you have other open bug report on this issue, please give its number.
Reproduce code:
---------------
class TestIt { }
class testclass2 {
function TestItToo() {}
}
var_dump(setlocale(LC_ALL,'tr_TR.UTF-8'));
var_dump(class_exists('TestIt'));
$TestObj = new testclass2();
var_dump(method_exists($TestObj,'TestItToo'));
Expected result:
----------------
string(11) "tr_TR.UTF-8"
bool(true)
bool(true)
Actual result:
--------------
string(11) "tr_TR.UTF-8"
bool(false)
bool(false)
--
Edit bug report at http://bugs.php.net/?id=42526&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=42526&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=42526&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=42526&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42526&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=42526&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42526&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42526&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42526&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42526&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42526&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=42526&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=42526&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42526&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42526&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42526&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42526&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42526&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42526&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42526&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42526&r=mysqlcfg
