Bug #76355 [NEW]: ArrayObject allows foreach by reference

From: biser dot antonov at gmail dot com Operating system: Debian PHP version: 7.2.5 Package: SPL related Bug Type: Bug Bug description:ArrayObject allows foreach by reference Description: ------------ I don't know if it's bug but the ArrayObject allows foreach by reference. If however I create it with a custom iterator which overrides the current() method a fatal error is produced: Fatal error: An iterator cannot be used with foreach by reference Links with both cases can be found here: https://3v4l.org/aBKtd https://3v4l.org/00Z3F Test script: --------------- $a = new ArrayObject([1, 2, 3]); foreach ($a as $key => &$value) { $value += 10; } unset($value); var_dump($a); Expected result: ---------------- Fatal error: An iterator cannot be used with foreach by reference Actual result: -------------- object(ArrayObject)#1 (1) { ["storage":"ArrayObject":private]=> array(3) { [0]=> int(11) [1]=> int(12) [2]=> int(13) } } -- Edit bug report at https://bugs.php.net/bug.php?id=76355&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76355&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76355&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76355&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76355&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76355&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76355&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76355&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76355&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76355&r=support Expected behavior: https://bugs.php.net/fix.php?id=76355&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76355&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76355&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76355&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76355&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76355&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76355&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76355&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76355&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76355&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76355&r=mysqlcfg