/**

* @author gayayang

* @date 2012-8-21

* @todo 将对象转换成数组

* @param unknown_type $obj

* @return unknown

*/

function object_to_array($obj){

    $_arr = is_object($obj) ? get_object_vars($obj) :$obj;

    foreach ($_arr as $key=>$val){

   　　 $val = (is_array($val) || is_object($val)) ? $this->object_to_array($val):$val;

    　　$arr[$key] = $val;

　　}

    return $arr;

}