Bug #78941 [NEW]: Segfault with unparenthesized expressions containing both '.' and '+'/'-'

From: marcus at synchromedia dot co dot uk Operating system: macOS 10.14 PHP version: 7.4.0 Package: Reproducible crash Bug Type: Bug Bug description:Segfault with unparenthesized expressions containing both '.' and '+'/'-' Description: ------------ PHP 7.4.0 release installed from homebrew. If code that triggers this warning: > The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence appears in a base class, creating an instance of a subclass of it will segfault. Modules loaded: [PHP Modules] apcu bcmath bz2 calendar Core ctype curl date dba dom exif FFI fileinfo filter ftp gd gettext gmp hash iconv intl json ldap libxml mbstring mysqli mysqlnd odbc openssl pcntl pcre PDO pdo_dblib pdo_mysql PDO_ODBC pdo_pgsql pdo_sqlite pgsql Phar phpdbg_webhelper posix pspell readline Reflection session shmop SimpleXML soap sockets sodium SPL sqlite3 standard sysvmsg sysvsem sysvshm tidy tokenizer xml xmlreader xmlrpc xmlwriter xsl Zend OPcache zip zlib [Zend Modules] Zend OPcache Test script: --------------- I have provided a project to reproduce the crash: https://github.com/Synchro/seg git clone https://github.com/Synchro/seg.git cd seg composer install --dev php vendor/bin/phpunit --no-configuration --filter "/(::testBase)( .*)?$/" Synchro\seg\Test\segTest tests/segTest.php php vendor/bin/phpunit --no-configuration --filter "/(::testGeneric)( .*)?$/" Synchro\seg\Test\segTest tests/segTest.php -- Edit bug report at https://bugs.php.net/bug.php?id=78941&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=78941&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78941&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78941&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78941&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78941&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78941&r=support Expected behavior: https://bugs.php.net/fix.php?id=78941&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78941&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78941&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78941&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=78941&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=78941&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78941&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78941&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78941&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78941&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78941&r=mysqlcfg