[PHP-BUG] Bug #51374 [NEW]: initialized empty arrays in SPLFileObject subclasses fails

From:             
Operating system: 
PHP version:      5.3.2
Package:          SPL related
Bug Type:         Bug
Bug description:initialized empty arrays in SPLFileObject subclasses fails

Description:
------------
when subclassing SplFileObject and opening it via SplFileInfo->openFile()
initialized array properties of the subclass of SplFileInfo are changing to
null, while strings are fine.

Test script:
---------------
<?php
class Foo extends SplFileObject
{
        public $bar = 'baz';
        public $bam = array();
	function __construct($file)
	{
		// do stuff
		parent::__construct($file);	
	}
}
$fileInfo = new SplFileInfo('php://temp');
$fileInfo->setFileClass('Foo');
$file = $fileInfo->openFile('r');

print var_dump($file->bar); // is baz
print var_dump($file->bam); // is null or UNKNOWN:0
?>

Expected result:
----------------
I expected var_dump($file->bam) to print an empty array

Actual result:
--------------
null or UNKNOWN:0

-- 
Edit bug report at http://bugs.php.net/bug.php?id=51374&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=51374&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=51374&r=trysnapshot53
Try a snapshot (PHP 6.0):            http://bugs.php.net/fix.php?id=51374&r=trysnapshot60
Fixed in SVN:                        http://bugs.php.net/fix.php?id=51374&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51374&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=51374&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=51374&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=51374&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=51374&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=51374&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=51374&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=51374&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=51374&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=51374&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=51374&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=51374&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=51374&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=51374&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=51374&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=51374&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=51374&r=mysqlcfg