#46461 [NEW]: After a array key is referenced in a class variable, the array can't be copied.

From: twonests at yahoo dot com Operating system: linux, centos 5.0 PHP version: 5.2.6 PHP Bug Type: Arrays related Bug description: After a array key is referenced in a class variable, the array can't be copied. Description: ------------ If I make an array, (NOT a class, an array with strings in it), and then one of the keys of that array is referenced by a class instance's member variable, then that array key/value can no longer be copied. See the code, it's small. We have php 5.2.3. No, sorry, we can't upgrade to check if it's been fixed. Try running the code, it's small. Your form did not provide me the option of saying so. (Which I think is unreasonable.) Reproduce code: --------------- class c { private $ref; public function setref(&$r) { $this->ref = &$r; } } $ar = array('a'=>'b'); $c = new c(); $c->setref( $ar['a']); $copy = $ar; $copy['a'] = 'x'; print_r($ar); /* This will print: Array ( [a] => x ) (Which it shouldn't.) As a demonstration, try commenting out the line $c->setref( $ar['a']); You'll get a different result. (Which you shouldn't.) */ Expected result: ---------------- Array ( [a] => b ) Notice that the line $copy = $ar; is making a copy, not a reference. Actual result: -------------- This will print: Array ( [a] => x ) (Which it shouldn't.) As a demonstration, try commenting out the line $c->setref( $ar['a']); You'll get a different result. (Which you shouldn't.) -- Edit bug report at http://bugs.php.net/?id=46461&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46461&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46461&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46461&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=46461&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=46461&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=46461&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=46461&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=46461&r=needscript Try newer version: http://bugs.php.net/fix.php?id=46461&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=46461&r=support Expected behavior: http://bugs.php.net/fix.php?id=46461&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=46461&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=46461&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=46461&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46461&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=46461&r=dst IIS Stability: http://bugs.php.net/fix.php?id=46461&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=46461&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=46461&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=46461&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=46461&r=mysqlcfg