#28734 [NEW]: Operator = changes structure of self-referencing arrays

From: tomas_matousek at hotmail dot com Operating system: WinXP PHP version: 5.0.0RC2 PHP Bug Type: Scripting Engine problem Bug description: Operator = changes structure of self-referencing arrays Description: ------------ Create an array $b and set some of its item to reference the array itself by =& operator. Then assign this array to some other variable. This assignment (*) makes something wrong in the array $b because if you change $b's items after this assignment the structure of array $b is changed. However, if that assignment (*) doesn't take place the behavior is correct. Reproduce code: --------------- $b = array(1,2,3,4); $b[4] =& $b; // this assignment probably makes changes to $b's structure $c = $b; $b[1] = 'X'; $b[4][1] = 'Y'; $b[4][4][1] = 'Z'; print_r($b); Expected result: ---------------- Array ( [0] => 1 [1] => Z [2] => 3 [3] => 4 [4] => Array *RECURSION* ) Actual result: -------------- Array ( [0] => 1 [1] => X [2] => 3 [3] => 4 [4] => Array ( [0] => 1 [1] => Y [2] => 3 [3] => 4 [4] => Array ( [0] => 1 [1] => Z [2] => 3 [3] => 4 [4] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => Array *RECURSION* ) ) ) ) -- Edit bug report at http://bugs.php.net/?id=28734&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=28734&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=28734&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=28734&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=28734&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=28734&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=28734&r=needscript Try newer version: http://bugs.php.net/fix.php?id=28734&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=28734&r=support Expected behavior: http://bugs.php.net/fix.php?id=28734&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=28734&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=28734&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=28734&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28734&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=28734&r=dst IIS Stability: http://bugs.php.net/fix.php?id=28734&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=28734&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=28734&r=float