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Bug #42304 strtoupper('č') doesn't work
Submitted: 2007-08-15 08:18 UTC Modified: 2007-08-15 08:20 UTC
From: gustavs dot cirulis at cervon dot net Assigned:
Status: Not a bug Package: *Unicode Issues
PHP Version: 5.2.4RC1 OS: Mac OS X 10.4.10
Private report: No CVE-ID: None
 [2007-08-15 08:18 UTC] gustavs dot cirulis at cervon dot net
The function strtoupper('č') doesn't make the "č" letter as a "Č"(uppercase). 

If you replace the č with c it will create it uppercase.

Reproduce code:
echo 'strtoupper(č) => ' . strtoupper('č') . ' != Č';

Expected result:
I expect for a the letter "č" to be upper case as "Č".


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 [2007-08-15 08:20 UTC]
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at and the instructions on how to report
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