Bug #75225 [NEW]: str_ireplace() has no case insensitivity on non-latin letters in UTF strings

From: 1234ru at gmail dot com Operating system: PHP version: 7.1.9 Package: *Languages/Translation Bug Type: Bug Bug description:str_ireplace() has no case insensitivity on non-latin letters in UTF strings Description: ------------ In other words, it simply ignores case-insensitive replacement when dealing with any letters except Latin. Not a single word in the documentation at http://php.net/str_ireplace covers the issue. And there is no corresponding mb* function. Test script: --------------- echo str_ireplace("б", "1", "111ббб"); // russian letters in UTF-8 encoding Expected result: ---------------- 111111 Actual result: -------------- 111ббб -- Edit bug report at https://bugs.php.net/bug.php?id=75225&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75225&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75225&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75225&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75225&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75225&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75225&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75225&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75225&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75225&r=support Expected behavior: https://bugs.php.net/fix.php?id=75225&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75225&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75225&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75225&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75225&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75225&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75225&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75225&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75225&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75225&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75225&r=mysqlcfg