php拉拉工匠在模型中迁移错误？

Question

我刚开始使用php laravel，我尝试用数据库迁移项目，但是我得到了以下错误？

Illuminate\Database\QueryException 

  could not find driver (SQL: select * from information_schema.tables where table_schema = lcrud and table_name = migrations and table_type = 'BASE TABLE')

  at vendor/laravel/framework/src/Illuminate/Database/Connection.php:669
    665|         // If an exception occurs when attempting to run a query, we'll format the error
    666|         // message to include the bindings with SQL, which will make this exception a
    667|         // lot more helpful to the developer instead of just the database's errors.
    668|         catch (Exception $e) {
  > 669|             throw new QueryException(
    670|                 $query, $this->prepareBindings($bindings), $e
    671|             );
    672|         }
    673| 

      +34 vendor frames 
  35  artisan:37
      Illuminate\Foundation\Console\Kernel::handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))

这是.env文件

APP_NAME=lcrud
APP_ENV=local
APP_KEY=base64:PchgVozhfLeJtzlwFMtY0VGEpsfj2PYCtS7eVcothEY=
APP_DEBUG=true
APP_URL=http://localhost

LOG_CHANNEL=stack

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=lcrud
DB_USERNAME=root
DB_PASSWORD=

BROADCAST_DRIVER=log
CACHE_DRIVER=file
QUEUE_CONNECTION=sync
SESSION_DRIVER=file
SESSION_LIFETIME=120

REDIS_HOST=127.0.0.1
REDIS_PASSWORD=null
REDIS_PORT=6379

MAIL_MAILER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
MAIL_FROM_ADDRESS=null
MAIL_FROM_NAME="${APP_NAME}"

AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=
AWS_DEFAULT_REGION=us-east-1
AWS_BUCKET=

PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=mt1

MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"

我反复检查我的密码是空的，所以我尝试放置空字符串，像这个DB_PASSWORD=''，也像这个DB_PASSWORD=' '，但是在其他的堆栈溢出问题上，它也不起作用，我读到了关于php.ini文件的内容，并根据这个page进行了更改。

我的php版本是PHP 7.2.24-0ubuntu0.19.04.2 (cli) (built: Jan 14 2020 13:26:02) ( NTS )

当我在终端输入which php时，我得到了/usr/bin/php

我正试着回答其他问题，但没有用。请帮帮我，谢谢。

更新这里我有我的database.php文件可以帮你，

'connections' => [

        'sqlite' => [
            'driver' => 'sqlite',
            'url' => env('DATABASE_URL'),
            'database' => env('DB_DATABASE', database_path('database.sqlite')),
            'prefix' => '',
            'foreign_key_constraints' => env('DB_FOREIGN_KEYS', true),
        ],

        'mysql' => [
            'driver' => 'mysql',
            'url' => env('DATABASE_URL'),
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '3306'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'unix_socket' => env('DB_SOCKET', ''),
            'charset' => 'utf8mb4',
            'collation' => 'utf8mb4_unicode_ci',
            'prefix' => '',
            'prefix_indexes' => true,
            'strict' => true,
            'engine' => null,
            'options' => extension_loaded('pdo_mysql') ? array_filter([
                PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
            ]) : [],
        ],

        'pgsql' => [
            'driver' => 'pgsql',
            'url' => env('DATABASE_URL'),
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '5432'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset' => 'utf8',
            'prefix' => '',
            'prefix_indexes' => true,
            'schema' => 'public',
            'sslmode' => 'prefer',
        ],

        'sqlsrv' => [
            'driver' => 'sqlsrv',
            'url' => env('DATABASE_URL'),
            'host' => env('DB_HOST', 'localhost'),
            'port' => env('DB_PORT', '1433'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset' => 'utf8',
            'prefix' => '',
            'prefix_indexes' => true,
        ],

    ],

Answer 1

您会得到此错误，因为没有mysql服务器驱动程序。您可以通过使用以下命令安装它来尝试它。

sudo apt-get install mysql-server php7.1-mysql
sudo service apache2 restart
sudo service mysql restart

希望这能帮到你。

Answer 2

存在"lcrud“数据库吗？

或

php artisan config:clear
php artisan cache:clear

Answer 3

我想你能错过php7.x-mysql吗

你可以跑：

php -v

例如输出:PHP7.1

sudo apt-get install php7.1-mysql

更新:在标准Ubuntu存储库中，没有Ubuntu信任的PHP 7 (2016-01-02)。您可以使用ppa:ondrej/php。

sudo apt-add-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php7.1-fpm
sudo apt-get install php7.1-mysql
sudo service apache2 restart