From:             serovov at gmail dot com
Operating system: ANY
PHP version:      5.2.6
PHP Bug Type:     *General Issues
Bug description:  Object(with numeric named vars) -> array = isset(); bug;

Description:
------------
When object has numeric named vars, and we cast this object to array. we
have a problem with isset() checks;
PS. if is not a bug, please, explain why.

Reproduce code:
---------------
<?php
class buggy
{
    public function __construct(array $data)
    {
        foreach ($data as $key => $value) {
            $this->$key = $value;
        }
    }
}
function test_buggy($buggy)
{
    $kbuggy = array_keys($buggy);
    var_dump(
        $buggy,
        $kbuggy,
        isset($buggy[current($kbuggy)]),
        isset($buggy[$kbuggy[0]]),
        isset($buggy[$kbuggy[1]]),
        isset($buggy[$kbuggy[2]])
    );
}

$array = array(
    'a',
    'b',
    'c',
);

$buggy = new buggy($array);
$buggy = (array) $buggy;

echo "Test #1: ";
test_buggy($buggy);

echo "Test #2: ";
$buggy = unserialize(serialize($buggy));
test_buggy($buggy);
?>

Expected result:
----------------
Test #1:

array
  '0' => string 'a' (length=1)
  '1' => string 'b' (length=1)
  '2' => string 'c' (length=1)

array
  0 => string '0' (length=1)
  1 => string '1' (length=1)
  2 => string '2' (length=1)

boolean false

boolean false

boolean false

boolean false

Test #2:

array
  0 => string 'a' (length=1)
  1 => string 'b' (length=1)
  2 => string 'c' (length=1)

array
  0 => int 0
  1 => int 1
  2 => int 2

boolean true

boolean true

boolean true

boolean true


Actual result:
--------------
Test #1:

array
  0 => string 'a' (length=1)
  1 => string 'b' (length=1)
  2 => string 'c' (length=1)

array
  0 => int 0
  1 => int 1
  2 => int 2

boolean true

boolean true

boolean true

boolean true

Test #2:

array
  0 => string 'a' (length=1)
  1 => string 'b' (length=1)
  2 => string 'c' (length=1)

array
  0 => int 0
  1 => int 1
  2 => int 2

boolean true

boolean true

boolean true

boolean true


-- 
Edit bug report at http://bugs.php.net/?id=46530&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        
http://bugs.php.net/fix.php?id=46530&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        
http://bugs.php.net/fix.php?id=46530&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        
http://bugs.php.net/fix.php?id=46530&r=trysnapshot60
Fixed in CVS:                        
http://bugs.php.net/fix.php?id=46530&r=fixedcvs
Fixed in CVS and need be documented: 
http://bugs.php.net/fix.php?id=46530&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=46530&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=46530&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=46530&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=46530&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=46530&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=46530&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=46530&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=46530&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=46530&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=46530&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=46530&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=46530&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=46530&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=46530&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=46530&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=46530&r=mysqlcfg

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