Bug #8130 Updated: Changing a copy of an array affects the original

ID: 8130 User updated by: wstockal@msysgroup.com Reported By: wstockal@msysgroup.com Status: Closed Bug Type: Scripting Engine problem Operating System: Redhat Linux 6.2 PHP Version: 4.0.6-dev New Comment: This problem can also affect the private copies of variables used inside of functions. Script: class test { var $property; function do_something(){ return; } } function mangle($array_in) { $array_in[0]->property = 'trashed'; } $array[0] = new test; $array[0]->property = 'ok'; mangle($array); echo("<h2>Before:</h2>\n"); echo("\$array[0]->property is {$array[0]->property}<br>\n"); $array[0]->do_something(); mangle($array); echo("<h2>After:</h2>\n"); echo("\$array[0]->property is {$array[0]->property}<br>\n"); Output: <h2>Before:</h2> $array[0]->property is ok<br> <h2>After:</h2> $array[0]->property is trashed<br> Previous Comments: ------------------------------------------------------------------------ [2001-06-17 04:54:11] jmoore@php.net This will not be fixed anytime soon. It is a deep seated problem in the implementation and fixing it would cause speed problems and numerous other problems, This is somthing that can be coded around too so should not cause massive problems. - James ------------------------------------------------------------------------ [2001-04-28 15:27:42] jmoore@php.net Reproduced in 4.0.6-dev one for the bug squash ------------------------------------------------------------------------ [2001-01-06 02:38:08] cynic@php.net Confirmed in 4.0.4pl1 RC1 ------------------------------------------------------------------------ [2000-12-07 02:28:51] wstockal@msysgroup.com Is this the same as bug 6417? ------------------------------------------------------------------------ [2000-12-06 11:23:23] wstockal@msysgroup.com OK, this only affects objects in the array whose methods have been accessed. Other objects are still copies. It also works on php-4.0.3pl1 on the Win32 platform. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/?id=8130 Edit this bug report at http://bugs.php.net/?id=8130&edit=1