#49641 [NEW]: call-by-value does not work on objects

From: alhajaj at yahoo dot com Operating system: Windows XP PHP version: 5.2.11 PHP Bug Type: Scripting Engine problem Bug description: call-by-value does not work on objects Description: ------------ when passing an object by value to a function it alters the original object and not a copy of it. Here is a script to reproduce it. I included the handling for passing strings which works as expected unlike passing objects. Reproduce code: --------------- <?php class User { var $name; function User(){$this->name = "tony";} } function changeUserByRef(&$user) { $user->name = "changeUserByRef";} function changeUserByValue($user) { $user->name = "changeUserByValue";} function changeStringByRef(&$str) { $str = "changeStringByRef";} function changeStringByValue($str) { $str = "changeStringByValue";} $user = new User(); echo($user->name . '</br>' ); changeUserByRef($user); echo("changeUserByRef = " . $user->name . '</br>' ); $user->name = "tony"; echo($user->name . '</br>' ); changeUserByValue($user); echo("changeUserByValue = ". $user->name . '</br>' ); echo('<hr />'); $user->name = "tony"; echo($user->name . '</br>' ); changeStringByRef($user->name); echo("changeStringByRef = " . $user->name . '</br>' ); $user->name = "tony"; echo($user->name . '</br>' ); changeStringByValue($user->name); echo("changeStringByValue = " . $user->name . '</br>' ); ?> Expected result: ---------------- tony changeUserByRef = changeUserByRef tony changeUserByValue = tony --------------------------------------------------- tony changeStringByRef = changeStringByRef tony changeStringByValue = tony Actual result: -------------- tony changeUserByRef = changeUserByRef tony changeUserByValue = changeUserByValue --------------------------------------------------- tony changeStringByRef = changeStringByRef tony changeStringByValue = tony -- Edit bug report at http://bugs.php.net/?id=49641&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49641&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49641&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49641&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49641&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49641&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49641&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49641&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49641&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49641&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49641&r=support Expected behavior: http://bugs.php.net/fix.php?id=49641&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49641&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49641&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49641&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49641&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49641&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49641&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49641&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49641&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49641&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49641&r=mysqlcfg