为什么找不到"Class 'DI\Bridge\Slim\App'"？ PHP

Question

我正在尝试为我的网站创建购物车，我正在按照以下教程操作：https://www.youtube.com/watch?v=tRh467FX12U&list=PLfdtiltiRHWH9JN1NBpJRFUhN96KBfPmd&index=2

在教程中，他使用了来自 GitHub 的 3 个不同的导入，这是使用 composer 在终端中安装它们的方法：

rosscurrie = ~用户名

@Ross-Air = Macbook 名称

MobileMastersNew = 保存所有网站文件的文件夹名称

composer = 全局安装

需要 <...> = 来自 GitHub

的进口

rosscurrie@Rosss-Air MobileMastersNew % composer require slim/slim:^4.0
rosscurrie@Rosss-Air MobileMastersNew % composer require slim/twig-view:^3.0
rosscurrie@Rosss-Air MobileMastersNew % composer require php-di/slim-bridge
rosscurrie@Rosss-Air MobileMastersNew % composer require illuminate/database

我对 Laravel 的经验有限，但并非完全不熟悉。当我尝试加载 index.php 页面时出现此错误：

Fatal error: Uncaught Error: Class 'DI\Bridge\Slim\App' not found in /Users/rosscurrie/Sites/MobileMastersNew/app/App.php:8 Stack trace: #0 /Users/rosscurrie/Sites/MobileMastersNew/vendor/composer/ClassLoader.php(444): include() #1 /Users/rosscurrie/Sites/MobileMastersNew/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile('/Users/rosscurr...') #2 [internal function]: Composer\Autoload\ClassLoader->loadClass('Cart\App') #3 /Users/rosscurrie/Sites/MobileMastersNew/bootstrap/app.php(9): spl_autoload_call('Cart\App') #4 /Users/rosscurrie/Sites/MobileMastersNew/public/index.php(3): require('/Users/rosscurr...') #5 {main} thrown in /Users/rosscurrie/Sites/MobileMastersNew/app/App.php on line 8

我的文件夹目录如下：

我的../MobileMasters/app/App.php是：

<?php

namespace Cart;

use DI\ContainerBuilder;
use DI\Bridge\Slim\App as DIBridge;

class App extends DIBridge
{
    protected function configureContainer(ContainerBuilder $builder)
    {
        $builder->addDefinitions([
           'settings.displayErrorDetails' => true,
        ]);

        //
    }
}

我的../MobileMasters/bootstrap/app.php是：

<?php

session_start();

use Cart\App;

require __DIR__ . '/../vendor/autoload.php';

$app  = new App;

我的 ../MobileMasters/public/.htaccess 文件是：

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [QSA,L]

我的../MobileMasters/public/index.php是：

<?php

require __DIR__ . '/../bootstrap/app.php';

$app->run();

我的../MobileMasters/vendor/autoload.php是：

<?php

// autoload.php @generated by Composer

require_once __DIR__ . '/composer/autoload_real.php';

return ComposerAutoloaderInit2e9ebb4be0f95ed0dbfb26486b8ba4b7::getLoader();

最后，我的../MobileMasters/composer.json是：

{
    "require": {
        "slim/slim": "^4.0",
        "slim/twig-view": "^3.0",
        "php-di/slim-bridge": "^3.0",
        "illuminate/database": "^7.2"
    },
    "autoload": {
        "psr-4": {
            "Cart\": "app"
        }
    }
}

Answer 1

你应该在自动加载后使用 use 语句：

<?php

namespace Cart;

use DI\ContainerBuilder;
use DI\Bridge\Slim\App as DIBridge;

class App extends DIBridge
{
    protected function configureContainer(ContainerBuilder $builder)
    {
        $builder->addDefinitions([
           'settings.displayErrorDetails' => true,
        ]);

        //
    }
}

同时更改此文件：

session_start();

require __DIR__ . '/../vendor/autoload.php';
use Cart\App;

$app  = new App;

Answer 2

您使用了错误的命名空间 use DI\Bridge\Slim\App as DIBridge;。 DI 包中不再有 App class。

改为

使用下面的代码use DI\Bridge\Slim\Bridge as DIBridge;

Answer 3

您的 composer.json 需要看起来与教程中的几乎完全一样。我有同样的问题。要要求旧版本，您只需执行 composer remove slim/slim 然后 composer require slim/slim ^3.0.

特别是，您的 php-di 需要低于 v1.1。我的 composer.json:

{
    {
    "require": {
        "slim/slim": "^3.0",
        "slim/twig-view": "^2.1",
        "illuminate/database": "^5.2",
        "php-di/slim-bridge": "v1.0.2"
    },
    "autoload": {
        "psr-4": {
            "Cart\": "app/"
        }
    }
}

为什么找不到"Class 'DI\Bridge\Slim\App'"？ PHP

Why can "Class 'DI\Bridge\Slim\App'" not be found? PHP

php

laravel

slim-4