File::arrayWalkRecursive

static function arrayWalkRecursive(array $array)
{
	foreach ($array as $k => $v)
	{
		if (is_array($v))
		{
			$array[$k] = self::arrayWalkRecursive($v);
		}
		else if (is_object($v))
		{
			unset($array[$k]);
		}
	}
	return $array;
}