Bug #76512 [Ana]: \w no longer includes unicode characters

Edit report at https://bugs.php.net/bug.php?id=76512&edit=1 ID: 76512 Updated by: ab@php.net Reported by: leo dot feyer at gmail dot com Summary: \w no longer includes unicode characters Status: Analyzed Type: Bug Package: PCRE related Operating System: MacOS PHP Version: 7.3.0alpha2 Assigned To: cmb Block user comment: N Private report: N New Comment: That's the correct diagnose, Christoph. It was not intended and is a trivial porting mistake. It affected also ext/pcre/tests/bug52971.phpt which looked like a beaviour change. Seems there might be also an additional issue with the locale handling on Windows. I'm not sure yet it's about PCRE2 or setlocale(), needs more investigation. Thanks. Previous Comments: ------------------------------------------------------------------------ [2018-06-21 15:51:13] cmb@php.net > It seems to me that this PCRE_UCP[1] should actually be PCRE2_UCP. Indeed. ------------------------------------------------------------------------ [2018-06-21 14:19:32] cmb@php.net It seems to me that this PCRE_UCP[1] should actually be PCRE2_UCP. [1] <https://github.com/php/php-src/blob/5eb1f92f31cafc48384f9096012f421b37f6d425/ext/pcre/php_pcre.c#L676> ------------------------------------------------------------------------ [2018-06-21 13:47:21] leo dot feyer at gmail dot com Description: ------------ The \w escape sequence no longer includes unicode characters in PHP 7.3. See https://3v4l.org/uJKEC I don't know if this is intended, but since the change is not mentioned in the UPGRADING file, it might be not. Test script: --------------- var_dump(preg_match('/\w/u', 'ä')); Expected result: ---------------- The test script returns int(1) on PHP <7.3 and int(0) on PHP 7.3. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76512&edit=1