[TYPO3-core] RFC: #2302: substitute all strtoupper/strtolower with the t3lib_div-method

[Martin Kutschker]

Steffen Kamper schrieb:
> Hi,
> 
> This is an SVN patch request.
> 
> Type: Bugfix
> 
> Bugtracker reference:
> http://bugs.typo3.org/view.php?id=2302
> 
> Branches: trunk
> 
> Problem: strtoupper and strtolower are not multibyte-safe. For this reason 
> we added 2 methods in t3lib_div sometime ago.

No, this is a misunderstanding! The sole purpose of this two function is
to provide a locale independent conversion (needed for Turkish).

It's only meant for 7bit ASCII data, ie strings that are know to contain
only a-z and A-Z (eg by definition markers, etc)

Do NOT use it it on arbitary string especially not utf8.

If you need  to upper case utf or other charsets use t3lib_cs->case().

Masi