我想用这些代码将数据保存到表中
创建.blade.php

<div class="row">
        <div class="col-md-4"></div>
        <div class="form-group col-md-4">
            <label for="Name"> City Name:</label>
            <input type="text" class="form-control" name="city_name">
        </div>
    </div>

城市控制器.php

public function store(Request $request)
{

    $options = array();

    $options->city_name=$request->get('city_name');

    $attributes  =array('city_name');

    $table = 'cities';
    (new City())->store($table,$attributes,$options);
    return redirect('cities')->with('success','Information has been  inserted');
}

我的模型是city.php

public function store($table,$attributes,$options)
{
    (new Root())->store($table,$attributes,$options);
}

使用根模型root.php

public function store($table ,$attributes, $options)  {

    $value = array();

    foreach($attributes as $key=>$data)
    {
        $value[$data] = $options[$key];
    }
    DB::table($table)->insert($value);
}

但是当我在create视图中按下submit按钮时
errorexception（e\u警告）尝试分配非对象的属性'city\u name'
我怎样才能解决这个问题？