MSSQL 储存的手机 datatime 类型！

 array(2622) {
  [0]=>
  array(28) {
...
["oper_date"]=>
    object(DateTime)#2 (3) {
      ["date"]=>
      string(19) "2014-02-28 14:04:37"
      ["timezone_type"]=>
      int(3)
      ["timezone"]=>
      string(13) "Asia/Shanghai"
    }
....
}
}

怎么把里面的 ['date'] 区出来？

我这样写的 报错！

 $result = $db->table('t_rm_payflow')->select();
    foreach($result as $key => $val)
    {
        echo('<tr>');
        echo "<td>".$val['flow_no']."</td>";
        echo "<td>".sprintf("%.2f",$val['sale_amount'])."</td>";
            echo "<td>".$val['pay_way']."</td>";
            echo "<td>".$val['oper_id']."</td>";
            echo "<td>".$val['oper_date']->date."</td>";
            echo('</tr>');
    }

我这样就是` $val['oper_date']->date`  取不到报错！

    Notice: Undefined property: DateTime::$date in D:\htdocs\php2mssql\index.php on line XX