Req #81439 [NEW]: Please support the /n pattern modifier (PCRE2_NO_AUTO_CAPTURE)

From: roy-orbison at devo dot net dot au Operating system: PHP version: 8.0.10 Package: PCRE related Bug Type: Feature/Change Request Bug description:Please support the /n pattern modifier (PCRE2_NO_AUTO_CAPTURE) Description: ------------ PCRE has supported Perl's /n modifier since Version 10.30 14-August-2017, and has supported its behaviour via a NO_AUTO_CAPTURE option for many years before that. It prevents numbered captures appearing in result sets, allowing only named groups through (except 0, which corresponds to Perl's $&). It can make complex patterns more readable, and debugging/output of matches smaller, more semantic, and better suited to iteration. Test script: --------------- <?php preg_match('/(?:a|b)c(?:d|e)/', 'ace', $m1); preg_match('/(a|b)c(d|e)/n', 'ace', $m2); preg_match('/(?<prefix>foo|bar)baz(?<suffix>qux)?/', 'foobazqux', $m3); preg_match('/(?<prefix>foo|bar)baz(?<suffix>qux)?/n', 'foobazqux', $m4); var_dump($m1, $m2, $m3, $m4); Expected result: ---------------- array(1) { [0]=> string(2) "ace" } array(1) { [0]=> string(2) "ace" } array(5) { [0]=> string(9) "foobazqux" ["prefix"]=> string(3) "foo" [1]=> string(3) "foo" ["suffix"]=> string(3) "qux" [2]=> string(3) "qux" } array(5) { [0]=> string(9) "foobazqux" ["prefix"]=> string(3) "foo" ["suffix"]=> string(3) "qux" } Actual result: -------------- Warning: preg_match(): Unknown modifier 'n' in pcre-n.php on line 3 Warning: preg_match(): Unknown modifier 'n' in pcre-n.php on line 5 array(1) { [0]=> string(2) "ac" } NULL array(5) { [0]=> string(9) "foobazqux" ["prefix"]=> string(3) "foo" [1]=> string(3) "foo" ["suffix"]=> string(3) "qux" [2]=> string(3) "qux" } NULL -- Edit bug report at https://bugs.php.net/bug.php?id=81439&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=81439&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=81439&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=81439&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=81439&r=needscript Try newer version: https://bugs.php.net/fix.php?id=81439&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=81439&r=support Expected behavior: https://bugs.php.net/fix.php?id=81439&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=81439&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=81439&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=81439&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=81439&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=81439&r=dst IIS Stability: https://bugs.php.net/fix.php?id=81439&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=81439&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=81439&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=81439&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=81439&r=mysqlcfg