Bug #77388 [NEW]: invalid range in character class doesn't bubble up

From: sjon at hortensius dot net Operating system: archlinux PHP version: 7.3.0 Package: PCRE related Bug Type: Bug Bug description:invalid range in character class doesn't bubble up Description: ------------ I found this while going through https://3v4l.org/bughunt/7.3.0/7.2.13+7.2.12 I'm not sure if this is a PHP or a PCRE bug (or maybe not a bug at all) but running the same regexp through pcre2test yields an error - but php accepts it since 7.3 $ pcre2test PCRE2 version 10.32 2018-09-10 re> /[^_-\s]/ Failed: error 150 at offset 6: invalid range in character class Test script: --------------- See https://3v4l.org/KICjT var_dump(preg_replace( '/[^_-\s]/' , '' , 'a b c d _ x' )); Expected result: ---------------- Warning: preg_replace(): Compilation failed: invalid range in character class at offset 5 in /in/KICjT on line 3 Actual result: -------------- string(5) "abcd_" -- Edit bug report at https://bugs.php.net/bug.php?id=77388&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77388&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77388&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77388&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77388&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77388&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77388&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77388&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77388&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77388&r=support Expected behavior: https://bugs.php.net/fix.php?id=77388&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77388&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77388&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77388&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77388&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77388&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77388&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77388&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77388&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77388&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77388&r=mysqlcfg