TP5数据库操作时出现未定义数组索引的错误提示

[lkjlnet]

TP5数据库操作时出现未定义数组索引的错误提示

页面提交是用AJAX提交:

	<article class="cl pd-20">
			<form action="" method="POST" class="form form-horizontal">
				<input type="hidden" value="{$list.id}" name='id'>
				<div class="row cl">
					<label class="form-label col-xs-4 col-sm-3"><span class="c-red"></span></label>
					<div class="formControls col-xs-8 col-sm-9"><img src='{$list.faceimage}' width="120px"
							height="160px" id='faceimage'>
					</div>

				</div>
				<div class="row cl">
					<label class="form-label col-xs-4 col-sm-3"><span class="c-red">*</span>姓名：</label>
					<div class="formControls col-xs-8 col-sm-9">
						<input type="text" class="edit_input-text" value="{$list.name}" placeholder="" id="name"
							name="name" style="width:400px;height:25px">
					</div>
				</div>
				<div class="row cl">
					<label class="form-label col-xs-4 col-sm-3"><span class="c-red">*</span>密码：</label>
					<div class="formControls col-xs-8 col-sm-9">
						<input type="password" class="edit_input-text" autocomplete="off" value="{$list.password}"
							placeholder="密码" id="password" name="password" style="width:400px;height:25px">
					</div>
				</div>
				<div class="row cl">
					<label class="form-label col-xs-4 col-sm-3"><span class="c-red">*</span>性别：</label>
					<div class="formControls col-xs-8 col-sm-9 skin-minimal">
						<select class="select" name="sex" size="1" style="width:400px;height:30px">
							{switch name='list.sex'}
							{case value='男'}
							<option value="0" selected>男</option>
							<option value="1">女</option>
							{/case}
							{case value='女'}
							<option value="0">男</option>
							<option value="1" selected>女</option>
							{/case}
							{/switch}
						</select>
					</div>
				</div>
				<div class="row cl">
					<label class="form-label col-xs-4 col-sm-3"><span class="c-red"></span>班级</label>
					<div class="formControls col-xs-8 col-sm-9">
						<input type="text" class="edit_input-text" value="{$list.class}" placeholder="" id="class"
							name="class" style="width:400px;height:25px">
					</div>
				</div>
				<div class="row cl">
					<label class="form-label col-xs-4 col-sm-3"><span class="c-red"></span>学号</label>
					<div class="formControls col-xs-8 col-sm-9">
						<input type="text" class="edit_input-text" value="{$list.num}" placeholder="" id="num"
							name="num" style="width:400px;height:25px">
					</div>
				</div>
				<div class="row cl">
					<label class="form-label col-xs-4 col-sm-3"><span class="c-red">*</span>头像</label>
					<div class="formControls col-xs-8 col-sm-9">
						<input type="file" name="faceimage" style="width:400px;height:25px" /> <br>
					</div>
				</div>


				<div class="row cl">
					<div class="col-xs-8 col-sm-9 col-xs-offset-4 col-sm-offset-3">
						<input class="btn btn-primary radius" type="button" value="  提交  "
							id='button'>
					</div>
				</div>
			</form>
		</article>
	</section>
	{include file='public/footer'}
	<!--请在下方写此页面业务相关的脚本-->
	<script type="text/javascript" src="/static/lib/jquery.validation/1.14.0/jquery.validate.js"></script>
	<script type="text/javascript" src="/static/lib/jquery.validation/1.14.0/validate-methods.js"></script>
	<script type="text/javascript" src="/static/lib/jquery.validation/1.14.0/messages_zh.js"></script>

	<script>
		$(function () {
			$('#button').on('click', function () {
				$.ajax({
					type: "POST",  //提交的类型是POST
					url: "{:url('updateUserInfo')}",
					data: $('form').serialize(),   //表单提交数列化
					dataType: "json",  //数字类型JSON
					success: function (data) {
						if (data.state == 1) {
							alert(data.message);
							window.location.href = "{:url('index')}";
						} else {
							alert(data.message);

						}
					}
				});
			})
		})

	</script>

后台处理的代码：

public function updateUserInfo(Request $request)
    {

        $state = 0;
        $result = "登录失败";
        $data = $request->param();

        $updatetime = time();
        $user = UserModel::get($data['id']);
        $user->name = $data[name];
        $user->password = $data['password'];
        $user->sex = $data['sex'];
        $user->class = $data['class'];
        $user->num = $data['num'];

        $user->save();
        return ['status' => $state, 'message' => $result];

    }

出现的问题：

错误提示：

引用