Bug #79363 [NEW]: \p{L} doesn't work alongside \p{Arabic} in a character class

From: halaeiv at gmail dot com Operating system: Ubuntu PHP version: 7.4.3 Package: PCRE related Bug Type: Bug Bug description:\p{L} doesn't work alongside \p{Arabic} in a character class Description: ------------ I ran the following code in both PHP 7.2.28 and PHP 7.4.3. The output of PHP 7.4.3 is wrong. Basically, adding a \p{Arabic} after \p{L} seems to causes \p{L} to match uppercases and spaces, instead of letters. Test script: --------------- $str = 'lower UPPER'; echo(preg_replace('/[\p{L}\p{Arabic}]/', '0', $str)); echo "\n"; echo(preg_replace('/[^\p{L}\p{Arabic}]/', '0', $str)); echo "\n"; Expected result: ---------------- 00000 00000 lower0UPPER Actual result: -------------- lower000000 00000 UPPER -- Edit bug report at https://bugs.php.net/bug.php?id=79363&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79363&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79363&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79363&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79363&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79363&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79363&r=support Expected behavior: https://bugs.php.net/fix.php?id=79363&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79363&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79363&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79363&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79363&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79363&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79363&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79363&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79363&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79363&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79363&r=mysqlcfg