Bug #77279 [NEW]: empty string serialization

From: kabikov at sst dot su Operating system: FreeBSD 11 PHP version: 7.3.0 Package: Unknown/Other Function Bug Type: Bug Bug description:empty string serialization Description: ------------ php /tmp/1.php PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 1147720050061953400 bytes) in /tmp/1.php on line 2 Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 1147720050061953400 bytes) in /tmp/1.php on line 2 Test script: --------------- <?php $a=""; $b=addslashes(serialize($a)); echo '['.$b.']'; Expected result: ---------------- empty string serialized Actual result: -------------- Fatal error -- Edit bug report at https://bugs.php.net/bug.php?id=77279&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77279&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77279&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77279&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77279&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77279&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77279&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77279&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77279&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77279&r=support Expected behavior: https://bugs.php.net/fix.php?id=77279&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77279&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77279&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77279&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77279&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77279&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77279&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77279&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77279&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77279&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77279&r=mysqlcfg