Laravel5.7变量在HTML5.7标记中被降低

Question

我正试图在我的option标签中做一个三元操作。但是当我调用这个变量时，它变成了小写，而laravel却找不到它。

这是我的代码：

<select name="media_type" id="media_type" class="">
    <option value="">Select an option</option>
    <option value="image" {{ $campBanner->media_type == 'image' ? 'selected' : '' }}>Image</option>
    <option value="video" {{ $campBanner->media_type == 'video' ? 'selected' : '' }}>Video</option>
</select>

这是拉拉例外的结果：

<select name="media_type" id="media_type" class="">
    <option value="">Select an option</option>
    <option value="image" <?php echo e($campbanner->media_type == 'image' ? 'selected' : ''); ?>>Image</option>
    <option value="video" <?php echo e($campbanner->media_type == 'video' ? 'selected' : ''); ?>>Video</option>
</select>

ErrorException (E_ERROR) 未定义变量:大本营

是虫子吗？还是我搞砸了什么？

更新

这是我的控制器：

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\CampBanner;
use App\Http\Requests\StoreCampBanner;

class CampBannerController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
         return view('CampBanner.index', [
            'campBanner' => CampBanner::all()
         ]);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        return view('CampBanner.create');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(StoreCampBanner $request)
    {
        CampBanner::create(
            $request->validated()
        );

        return ['message' => 'Banner Camp baru telah ditambahkan'];
    }

    /**
     * Display the specified resource.
     *
     * @param  \App\CampBanner  $campBanner
     * @return \Illuminate\Http\Response
     */
    public function show(CampBanner $campBanner)
    {
         return view('CampBanner.show', compact('campBanner'));
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  \App\CampBanner  $campBanner
     * @return \Illuminate\Http\Response
     */
    public function edit(CampBanner $campBanner)
    {
        return view('CampBanner.edit', compact('campBanner'));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \App\CampBanner  $campBanner
     * @return \Illuminate\Http\Response
     */
    public function update(StoreCampBanner $request, CampBanner $campBanner)
    {
        $campBanner->fill(
            $request->validated()
        )->save();

        return ['message' => 'Camp Banner berhasil diperbarui'];
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  \App\CampBanner  $campBanner
     * @return \Illuminate\Http\Response
     */
    public function destroy(CampBanner $campBanner)
    {
        $campBanner->delete();
        return ['message' => 'Camp Banner berhasil dihapus.'];
    }
}

Answer 1

把你的控制器代码，以便得到更好的帮助。