ID:               41372
 User updated by:  forjest at gmail dot com
 Reported By:      forjest at gmail dot com
-Status:           Bogus
+Status:           Open
 Bug Type:         Arrays related
 Operating System: WinXP, Linux
 PHP Version:      4.4.7
 New Comment:

I'm described problem, that is not foreach related. Just
1. Straight copy from one global scope variable to another
2. Copy from current runing context to global variable.

Not iterating local varibale after copying element of global array.
This is another bug, but may be from same "family".
And please remember another one http://bugs.php.net/bug.php?id=37715
Problem appeared at 4.4.2 and 5.1.2 and was reported year ago...

May be I'm described duplicate of "This is expected and not going to be
changed" bug instead of assigned 'foreach' bug?


Previous Comments:
------------------------------------------------------------------------

[2007-05-16 13:01:18] [EMAIL PROTECTED]

Duplicate of bug #40509.

------------------------------------------------------------------------

[2007-05-12 10:10:17] forjest at gmail dot com

/*for simple case just wrap array in some array function. That will
cause small overhead, but at least save your internal pointer*/
$Foo = array('val1', 'val2', 'val3');
end($Foo);
var_dump(key($Foo));
$AllOkay = array_merge($Foo);
var_dump(key($Foo));

----------
/*But to make immune running context for error handler function nothing
helps, except ugly serialize/unserialize solution*/

error_reporting(E_ALL); 
function TestErrorHandler($severity, $message, $filename, $line,
$super_globals) 
{ 
    global $foo;
    $foo = unserialize(serialize($super_globals));
} 

class Test  
{ 
     function run()  
     { 
          $Res = array('val1', 'val2', 'val3'); 
          end($Res); 
          var_dump(key($Res)); 
          HEY;//raise notice error 
          var_dump(key($Res));      
     } 
} 
$test = new Test(); 
set_error_handler('TestErrorHandler'); 
$test-> run();

------------------------------------------------------------------------

[2007-05-12 08:32:17] forjest at gmail dot com

Description:
------------
Bug first appeared in 4.4.2. Version 4.4.1 works okay.
5.1.4, 5.2.1 has this bug too.
-----
Seems algorithm of array copying was changed at 4.4.2 and 5.1.2
versions.
-----
This behavior cause problems in unexpected situations such as error
handling functions, when array pointer reseted due copying from another
array which reference to it.


Reproduce code:
---------------
$Foo = array('val1', 'val2', 'val3');
end($Foo);
var_dump(key($Foo));
$MagicInternalPointerResetter = $Foo;
var_dump(key($Foo));
--
Code describing unexpected results of this behavior listed here:
http://www.pastebin.ru/10226


Expected result:
----------------
int(2) int(2)

Actual result:
--------------
int(2) int(0)


------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=41372&edit=1

Reply via email to