Bug #81640 [NEW]: preg_match compilation fails after upgrade from 7.4.25 to 7.4.26

From: calvet dot thomas at gmail dot com Operating system: Ubuntu PHP version: 7.4.26 Package: PCRE related Bug Type: Bug Bug description:preg_match compilation fails after upgrade from 7.4.25 to 7.4.26 Description: ------------ Hello, after upgrading from PHP 7.4.25 to PHP 7.4.26 on my servers, preg_match and preg_match_all compilation started to fail with the following error message: "PHP Warning: preg_match_all(): Compilation failed: unrecognised compile-time option bit(s) at offset 0". To resolve it I had to upgrade the libpcre2-8-0 package. The libpcre2-8-0 was at "version" 10.36, I upgraded it to "version" 10.39. Test script: --------------- preg_match('/abc/', 'foo'); -- Edit bug report at https://bugs.php.net/bug.php?id=81640&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=81640&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=81640&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=81640&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=81640&r=needscript Try newer version: https://bugs.php.net/fix.php?id=81640&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=81640&r=support Expected behavior: https://bugs.php.net/fix.php?id=81640&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=81640&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=81640&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=81640&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=81640&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=81640&r=dst IIS Stability: https://bugs.php.net/fix.php?id=81640&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=81640&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=81640&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=81640&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=81640&r=mysqlcfg