Bug #79448 [NEW]: 0 is a valid Unicode codepoint, but mb_substitute_character(0) fails

From: girgias Operating system: PHP version: 7.3.17RC1 Package: mbstring related Bug Type: Bug Bug description:0 is a valid Unicode codepoint, but mb_substitute_character(0) fails Description: ------------ The codepoint 0 is a valid unicode codepoint. See for current behaviour https://3v4l.org/FqOFj -- Edit bug report at https://bugs.php.net/bug.php?id=79448&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79448&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79448&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79448&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79448&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79448&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79448&r=support Expected behavior: https://bugs.php.net/fix.php?id=79448&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79448&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79448&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79448&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79448&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79448&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79448&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79448&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79448&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79448&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79448&r=mysqlcfg