#46893 [NEW]: extract($foo) fails silently if $foo['foo'] exists

From: steffen dot weber at gmail dot com Operating system: Gentoo Linux x86_64 PHP version: 5.2.8 PHP Bug Type: Arrays related Bug description: extract($foo) fails silently if $foo['foo'] exists Description: ------------ Execute the following script and observe that $bar is set to a random integer (*). Furthermore $test is not set at all. This problem did not occur with PHP 5.2.6. (*) Could this have security implications? Reproduce code: --------------- <?php $foo = array('foo' => 1, 'bar' => 2, 'test' => 3); extract($foo); var_dump($foo, $bar, $test); ?> Expected result: ---------------- int(1) int(2) int(3) Actual result: -------------- Notice: Undefined variable: test in extract-bug.php on line 4 int(1) int(RANDOM_NUMBER) NULL -- Edit bug report at http://bugs.php.net/?id=46893&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46893&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46893&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46893&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=46893&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=46893&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=46893&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=46893&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=46893&r=needscript Try newer version: http://bugs.php.net/fix.php?id=46893&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=46893&r=support Expected behavior: http://bugs.php.net/fix.php?id=46893&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=46893&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=46893&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=46893&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46893&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=46893&r=dst IIS Stability: http://bugs.php.net/fix.php?id=46893&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=46893&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=46893&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=46893&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=46893&r=mysqlcfg