Bug #79025 [NEW]: Assigning superglobals by reference in functions are reset to null

From: ssigwart at yahoo dot com Operating system: Any PHP version: 7.4.1 Package: *General Issues Bug Type: Bug Bug description:Assigning superglobals by reference in functions are reset to null Description: ------------ When you assign a variable to a superglobal ($_SESSION, $_GET, etc) by reference within a function, the variable is reset to null once you exit the function. Test script: --------------- $_SESSION['var'] = 1; function func1() { global $ref; global $nonRef; $ref = &$_SESSION['var']; $nonRef = $_SESSION['var']; } func1(); var_dump($_SESSION['var']); var_dump($ref); var_dump($nonRef); Expected result: ---------------- int(1) int(1) int(1) Actual result: -------------- int(1) NULL int(1) -- Edit bug report at https://bugs.php.net/bug.php?id=79025&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79025&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79025&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79025&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79025&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79025&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79025&r=support Expected behavior: https://bugs.php.net/fix.php?id=79025&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79025&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79025&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79025&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79025&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79025&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79025&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79025&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79025&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79025&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79025&r=mysqlcfg