$where=I('post.');

$where['yuyuetime']=date('Y-m-d H:i:s');
$where['state']=0;
$where['userid']=session('id');
$yuyue=M('yuyue');
$biaotable=M('biao');
//exit;
if(session('id')==NULL)
{
$this->error("请登陆","__APP__/Login");
}
else
{

$biaoresulr=$biaotable->where('id=%d',$where['id'])->select();

dump($biaoresulr);//这里可以完全输出

dump($biaoresulr['id']);//这里是NULL，怎么回事啊？？？？？？
}