thinkphp save判断是否修改成功

save:

$result=$item->where()->save();

if ($result === FALSE) {
    echo "修改失败";
} elseif($result === 0)  {
    echo "未更改";
} else {
    echo "已更改";

}

add:

if($item->data($data1)->add()!=false)
$this->success("您的信息提交成功，请耐心等候审核！",U("Index/index"));
else
$this->error("您的信息提交失败！");