Bug #76526 [Com]: Different behaviour shorthand escape codes vs unicode

Edit report at https://bugs.php.net/bug.php?id=76526&edit=1 ID: 76526 Comment by: bugs dot php dot net_nospam at adviesenzo dot nl Reported by: bugs dot php dot net_nospam at adviesenzo dot nl Summary: Different behaviour shorthand escape codes vs unicode Status: Duplicate Type: Bug Package: PCRE related PHP Version: 7.3.0alpha2 Block user comment: N Private report: N New Comment: Hi Nikita, thanks! I'd searched, but only looked at the open issues, so I missed that it had been reported and fixed already ;-) Previous Comments: ------------------------------------------------------------------------ [2018-06-25 10:01:50] nikic@php.net Duplicate of bug #76512. This will be fixed in the next alpha :) ------------------------------------------------------------------------ [2018-06-25 09:59:53] bugs dot php dot net_nospam at adviesenzo dot nl Description: ------------ Not sure whether this is a bug or a feature, so reporting this for someone else to make that determination. PCRE used to find a match using the below example code on PHP < 7.3, but no longer matches on PHP 7.3. See: https://3v4l.org/lunKA Is suspect the behavioural change is related to the implementation of PCRE 2 in PHP 7.3 - https://wiki.php.net/rfc/pcre2-migration . Test script: --------------- setlocale(LC_ALL, 'C'); var_dump(preg_match('^\w+$u', 'Iñtërnâtiônàlizætiøn')); Expected result: ---------------- I'd expected the results of the regex to be the same cross-version. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76526&edit=1