#50775 [NEW]: Array does not serialize properly

[tolkad dot freenode at gmail dot com]

From:             tolkad dot freenode at gmail dot com
Operating system: All
PHP version:      5.2.12
PHP Bug Type:     Arrays related
Bug description:  Array does not serialize properly

Description:
------------
When certain strings are unserialized they do not reserialize properly.

Reproduce code:
---------------
<?php
$x = array();
$x[] = &$x;

var_dump($x);
$z = serialize($x);
echo $z . "\n";
var_dump(unserialize($z));

echo "\n\n\n";

$x = unserialize("a:1:{i:0;R:1;}");
var_dump($x);
$z = serialize($x);
echo $z . "\n\n";
var_dump(unserialize($z));


Expected result:
----------------
array(1) {
  [0]=>
  &array(1) {
    [0]=>
    &array(1) {
      [0]=>
      *RECURSION*
    }
  }
}
a:1:{i:0;a:1:{i:0;R:2;}}
array(1) {
  [0]=>
  &array(1) {
    [0]=>
    &array(1) {
      [0]=>
      *RECURSION*
    }
  }
}



array(1) {
  [0]=>
  &array(1) {
    [0]=>
    &array(1) {
      [0]=>
      *RECURSION*
    }
  }
}
a:1:{i:0;R:1;}

array(1) {
  [0]=>
  &array(1) {
    [0]=>
    &array(1) {
      [0]=>
      *RECURSION*
    }
  }
}


Actual result:
--------------
array(1) {
  [0]=>
  &array(1) {
    [0]=>
    &array(1) {
      [0]=>
      *RECURSION*
    }
  }
}
a:1:{i:0;a:1:{i:0;R:2;}}
array(1) {
  [0]=>
  &array(1) {
    [0]=>
    &array(1) {
      [0]=>
      *RECURSION*
    }
  }
}



array(1) {
  [0]=>
  array(1) {
    [0]=>
    array(1) {
      [0]=>
      *RECURSION*
    }
  }
}
a:1:{i:0;a:1:{i:0;a:1:{i:0;N;}}}

array(1) {
  [0]=>
  array(1) {
    [0]=>
    array(1) {
      [0]=>
      NULL
    }
  }
}


-- 
Edit bug report at http://bugs.php.net/?id=50775&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=50775&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=50775&r=trysnapshot53
Try a snapshot (PHP 6.0):            
http://bugs.php.net/fix.php?id=50775&r=trysnapshot60
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=50775&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=50775&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=50775&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=50775&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=50775&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=50775&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=50775&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=50775&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=50775&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=50775&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=50775&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=50775&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=50775&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=50775&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=50775&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=50775&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=50775&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=50775&r=mysqlcfg