Trying to get property 'serino' of non-object - php

Question

I don't want to use "id" to edit the product, I want to use the "serial no" column. But I get the following error:
Trying to get property 'serino' of non-object
Product.php
public function edit($serino)
{
$product= DB::select('select * from products where serino=?',[$serino]);
return view("products/edit",compact("product"));
}
index.blade.php
<a href="{{route('products.edit',$product->serino)}}">
<button class="btn btn-info btn-sm"><i class="fas fa-edit"></i> Edit</button>
</a>
edit.blade.php
<form class="form-horizontal" action="{{route('products.update',$product->serino)}}" method="post">
{!! csrf_field() !!}
{!! method_field('put') !!}
<div class="form-group">
<div class="col-sm-12">
<input type="text" class="form-control" value="{{$product->name}}" name="name" placeholder="Product Name">
</div>
</div>
<div class="form-group">
<div class="col-sm-12">
<input type="text" class="form-control" value="{{$product->category}}" name="category" placeholder="Product Category">
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-12">
<button type="submit" class="btn btn-success">Save</button>
</div>
</div>
</form>
Good Work..

Answer 1

Your query will return you collection/array of result, no just one Product.
You can use sometihing like this:
$product = DB::table('products')->where('serino', $serino)->first();