Bug #76960 [NEW]: mb_strtoupper case mapping for ß is not correct

From: fundaris at gmail dot com Operating system: PHP version: 7.3.0RC2 Package: mbstring related Bug Type: Bug Bug description:mb_strtoupper case mapping for ß is not correct Description: ------------ I don't know if this is related/the real bug. https://bugs.php.net/bug.php?id=70072 After reading this https://github.com/php/php-src/blob/php-7.3.0RC2/UPGRADING I noticed that example mb_strtoupper("Straße") // Produces STRAßE on PHP 7.2 // Produces STRASSE on PHP 7.3 But why are we doing this? There is an https://www.fileformat.info/info/unicode/char/1e9e/index.htm in UTF-8 spec and there for no need for a casing mapping! Expected result: ---------------- mb_strtoupper("Straße") should give a STRAßE with an LATIN CAPITAL LETTER SHARP S Actual result: -------------- STRAßE with an LATIN SMALL LETTER SHARP S -- Edit bug report at https://bugs.php.net/bug.php?id=76960&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76960&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76960&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76960&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76960&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76960&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76960&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76960&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76960&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76960&r=support Expected behavior: https://bugs.php.net/fix.php?id=76960&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76960&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76960&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76960&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76960&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76960&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76960&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76960&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76960&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76960&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76960&r=mysqlcfg