Bug #77208 [NEW]: $_POST and other server superglobals become 'unset'

From: duncan dot courts at codex-atc dot com Operating system: Windows 7 Professional PHP version: 7.1.24 Package: Apache2 related Bug Type: Bug Bug description:$_POST and other server superglobals become 'unset' Description: ------------ After a period of normal operation, $_POST 'disappears' and isset() returns false. Restarting Apache instantly restores normal operation. The same has occurred with $_COOKIE, $_REQUEST, and $_SERVER, but not at the same time as $_POST. This has happened on different servers at different sites running the same PHP code. Occurrence frequency varies a lot, but can occur as little as a couple of hours after restart. There are no resource limitations and everything else appears normal. None of my code modifies the superglobals, only reads single array elements into other named variables. Apache version is 2.4.35. Test script: --------------- print_r($_POST); // Normal operation - prints Array() // After fault appears - prints nothing isset($_POST); // Normal operation - returns TRUE // After fault appears - returns FALSE -- Edit bug report at https://bugs.php.net/bug.php?id=77208&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77208&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77208&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77208&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77208&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77208&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77208&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77208&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77208&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77208&r=support Expected behavior: https://bugs.php.net/fix.php?id=77208&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77208&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77208&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77208&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77208&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77208&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77208&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77208&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77208&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77208&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77208&r=mysqlcfg