Bug #68914 [NEW]: Reference survives beyond function scope

From: steve dot piner at signify dot co dot nz Operating system: Ubuntu 14.10 PHP version: 5.6.5 Package: PHP Language Specification Bug Type: Bug Bug description:Reference survives beyond function scope Description: ------------ A reference created with a foreach loop appears to survive long after the function creating the reference has exited. Test script: --------------- function f() { static $x; if(!$x) { $x = range(1, 3); } foreach($x as $i => &$j) { } return $x; } $z = f(); $y = f(); $y[2] = 'surprise'; print $z[2] . "\n"; Expected result: ---------------- 3 Actual result: -------------- surprise -- Edit bug report at https://bugs.php.net/bug.php?id=68914&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68914&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68914&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68914&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68914&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68914&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68914&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68914&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68914&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68914&r=support Expected behavior: https://bugs.php.net/fix.php?id=68914&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68914&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68914&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68914&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68914&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68914&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68914&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68914&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68914&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68914&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68914&r=mysqlcfg