Bug #78263 [NEW]: \ReflectionReference::fromArrayElement() returns null while item is a reference

From: nicolas dot grekas+php at gmail dot com Operating system: PHP version: 7.4Git-2019-07-08 (Git) Package: Reflection related Bug Type: Bug Bug description:\ReflectionReference::fromArrayElement() returns null while item is a reference Description: ------------ See reproducer: Test script: --------------- $var = function &() { $var = []; $var[] = &$var; return $var; }; $var = [$var()]; function isref1(array $a, string $k) { return null !== \ReflectionReference::fromArrayElement($a, $k); } function isref2(array $a, string $k) { $v = $a[$k]; $b = $a; $b[$k] = $c = new \stdClass(); if ($a[$k] === $c) { $a[$k] = $v; return true; } return false; } var_dump($var); var_dump([isref1($var[0], 0), isref2($var[0], 0)]); Expected result: ---------------- array(1) { [0]=> array(1) { [0]=> *RECURSION* } } array(2) { [0]=> bool(false) [1]=> bool(true) } Actual result: -------------- array(1) { [0]=> array(1) { [0]=> *RECURSION* } } array(2) { [0]=> bool(true) [1]=> bool(true) } -- Edit bug report at https://bugs.php.net/bug.php?id=78263&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=78263&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=78263&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=78263&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=78263&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78263&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78263&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78263&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78263&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78263&r=support Expected behavior: https://bugs.php.net/fix.php?id=78263&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78263&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78263&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78263&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=78263&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=78263&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78263&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78263&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78263&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78263&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78263&r=mysqlcfg