Controller

app\Http\Controllers\TodoController.php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Posts;

class TodoController extends Controller
{
    public function index()
    {
        $posts = Posts::all();

        return view('todo.index', [
            'posts' => $posts
        ]);
    }

    public function update(Request $request)
    {
        // $posts = new Posts();
        // $posts->post_name = $request->post_name;
        // $posts->save();

        // $obj = Posts::create([
        //     'post_name' => $request->post_name
        // ]);

        $obj = Posts::create($request->all());

        return $obj;
    }
}

主要就是這一行

return view('todo.index', [
            'posts' => $posts
        ]);

就可以輸入到view

而view要呈現的方式，就是用這樣的方式來接

@foreach ($posts as $post)
    
{{ $post->id .".". $post->post_name }}
@endforeach

最後結果的畫面：