Bug #81198 [NEW]: preg_match doesn't work properly

From: advocat at gmail dot com Operating system: OSX Big Sur PHP version: 7.4.20 Package: PCRE related Bug Type: Bug Bug description:preg_match doesn't work properly Description: ------------ From manual page: https://php.net/function.preg-match --- PHP 7.4.20 (cli) (built: Jun 4 2021 03:32:07) ( NTS ) Copyright (c) The PHP Group Zend Engine v3.4.0, Copyright (c) Zend Technologies with Zend OPcache v7.4.20, Copyright (c), by Zend Technologies Test script: --------------- $pattern = "#/(?<moduleName>[^/]+)/layout/[^/]*\.xml$#i"; $filename = "/var/www/project/vendor/magento/theme-frontend-blank/Magento_Theme/layout/default_head_blocks.xml"; var_dump(preg_match($pattern, $filename, $matches), $matches); $pattern = "#/([^/]+)/layout/[^/]*\.xml$#i"; var_dump(preg_match($pattern, $filename, $matches), $matches); Expected result: ---------------- int(1) array(3) { [0]=> string(45) "/Magento_Theme/layout/default_head_blocks.xml" ["moduleName"]=> string(13) "Magento_Theme" [1]=> string(13) "Magento_Theme" } int(1) array(2) { [0]=> string(45) "/Magento_Theme/layout/default_head_blocks.xml" [1]=> string(13) "Magento_Theme" } Actual result: -------------- int(0) array(0) { } int(0) array(0) { } -- Edit bug report at https://bugs.php.net/bug.php?id=81198&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=81198&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=81198&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=81198&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=81198&r=needscript Try newer version: https://bugs.php.net/fix.php?id=81198&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=81198&r=support Expected behavior: https://bugs.php.net/fix.php?id=81198&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=81198&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=81198&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=81198&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=81198&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=81198&r=dst IIS Stability: https://bugs.php.net/fix.php?id=81198&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=81198&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=81198&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=81198&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=81198&r=mysqlcfg