php - Laravel: Blade View 中的 undefined variable

Question

这是AdminController.php:

<?php

namespace App\Http\Controllers;

use Response;

use Illuminate\Support\Facades\DB;
use App\Caption;
use App\Image;
use App\Http\Controllers\Controller;

class AdminController extends Controller
{
    public function admin() {
        $images = Image::paginate();

        return view('admin',[ '$images' => $images]);
    }
}

这是admin.blade.php:

@extends('template')

@section('title')
    Admin Page
@endsection

@section('header')
@endsection

@section('main')
    @if (Auth::check())
        @foreach ($images as $image)
            <p value='{{$image->id}}'>{{$image->content}}</p>
            <form action="image/{{$image->id}}/delete" method="post">
                <button type="submit">Delete caption</button>
            </form> 
            <form action="image/{{$image->id}}/approve" method="post">
                <button type="submit">Accept image</button>
            </form>
        @endforeach
    @else
        <p>Login first</p>
    @endif
@endsection

@section('footer')
@endsection

为什么会出现以下错误？

ErrorException in 408148d5409ae6eebf768dc5721bd0d1d9af48af.php line 9: Undefined variable: images (View: /Users/sahandz/Documents/School/Singapore/CS3226/backend/resources/views/admin.blade.php)

$images在我的 Controller 中明确定义。

Answer 1

在将数据传递给 View 时，您使用了 $images 作为变量名。这导致 Blade 创建一个名为 $$images 的变量。

return view('admin',[ 'images' => $images]);

将导致 View 创建一个名为 $images

的变量