Laravel 5.2 中的数据库配置

Question

我最近开始了一个全新安装 Laravel 5.2 的新项目，我对配置数据库所涉及的一些事情感到有些困惑。我想使用 sqlite 作为我的数据库，我的印象是我所要做的就是更改 config/database 文件，以便将 'default' 值设置为 sqlite，然后创建一个 database.sqlite 用于该数据库的文件。

因此，我将 config/database 文件更改为如下所示：

return [

/*
|--------------------------------------------------------------------------
| PDO Fetch Style
|--------------------------------------------------------------------------
|
| By default, database results will be returned as instances of the PHP
| stdClass object; however, you may desire to retrieve records in an
| array format for simplicity. Here you can tweak the fetch style.
|
*/

'fetch' => PDO::FETCH_CLASS,

/*
|--------------------------------------------------------------------------
| Default Database Connection Name
|--------------------------------------------------------------------------
|
| Here you may specify which of the database connections below you wish
| to use as your default connection for all database work. Of course
| you may use many connections at once using the Database library.
|
*/

'default' => env('DB_CONNECTION', 'sqlite'),

/*
|--------------------------------------------------------------------------
| Database Connections
|--------------------------------------------------------------------------
|
| Here are each of the database connections setup for your application.
| Of course, examples of configuring each database platform that is
| supported by Laravel is shown below to make development simple.
|
|
| All database work in Laravel is done through the PHP PDO facilities
| so make sure you have the driver for your particular database of
| choice installed on your machine before you begin development.
|
*/

'connections' => [

    'sqlite' => [
        'driver' => 'sqlite',
        'database' => database_path('database.sqlite'),
        'prefix' => '',
    ],

    'mysql' => [
        'driver' => 'mysql',
        'host' => env('DB_HOST', 'localhost'),
        'port' => env('DB_PORT', '8889'),
        'database' => env('DB_DATABASE', 'forge'),
        'username' => env('DB_USERNAME', 'forge'),
        'password' => env('DB_PASSWORD', ''),
        'charset' => 'utf8',
        'collation' => 'utf8_unicode_ci',
        'prefix' => '',
        'strict' => false,
        'engine' => null,
    ],

    'pgsql' => [
        'driver' => 'pgsql',
        'host' => env('DB_HOST', 'localhost'),
        'port' => env('DB_PORT', '5432'),
        'database' => env('DB_DATABASE', 'forge'),
        'username' => env('DB_USERNAME', 'forge'),
        'password' => env('DB_PASSWORD', ''),
        'charset' => 'utf8',
        'prefix' => '',
        'schema' => 'public',
    ],

],

/*
|--------------------------------------------------------------------------
| Migration Repository Table
|--------------------------------------------------------------------------
|
| This table keeps track of all the migrations that have already run for
| your application. Using this information, we can determine which of
| the migrations on disk haven't actually been run in the database.
|
*/

'migrations' => 'migrations',

/*
|--------------------------------------------------------------------------
| Redis Databases
|--------------------------------------------------------------------------
|
| Redis is an open source, fast, and advanced key-value store that also
| provides a richer set of commands than a typical key-value systems
| such as APC or Memcached. Laravel makes it easy to dig right in.
|
*/

'redis' => [

    'cluster' => false,

    'default' => [
        'host' => env('REDIS_HOST', 'localhost'),
        'password' => env('REDIS_PASSWORD', null),
        'port' => env('REDIS_PORT', 6379),
        'database' => 0,
    ],

],

];

然而，这并没有奏效。事实证明，我所要做的就是更改 .env 文件，使其 DB_CONNECTION 等于 sqlite。因此该文件当前设置为：

APP_ENV=local
APP_DEBUG=true
APP_KEY=base64:dUJjtQsUvjyT1zsHYDYVNUAHygIGMWj4Yu7N4CduAzg=
APP_URL=http://localhost

DB_CONNECTION=sqlite
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=homestead
DB_USERNAME=homestead
DB_PASSWORD=secret

CACHE_DRIVER=file
SESSION_DRIVER=file
QUEUE_DRIVER=sync

REDIS_HOST=127.0.0.1
REDIS_PASSWORD=null
REDIS_PORT=6379

MAIL_DRIVER=smtp
MAIL_HOST=mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null

现在，应用程序运行良好。

所以，我想我的问题是，如果 config/database 文件中的任何内容不更改 env 变量，那么它有什么意义呢？我错过了什么吗？

谢谢！

Answer 1

想法是更改 .env 文件以使更改反映在 database.php 文件中。

如果您正在与某人合作完成一个项目，并且如果您想与他们共享代码，则还应共享 database.php 文件。因此，这将包含您不想创建的数据库的所有凭据 public。

因此，为了防止这种情况发生，您创建了一个 .env 变量并在 database.php 文件中引用它。因此，当您将代码推送到 github 或任何存储库时，您可以设置一个规则来忽略 .env 文件。所以这个文件不会在版本控制下，也不会在所有其他协作者之间共享。

因此，当另一个项目成员从存储库中克隆代码时，他们所需要做的就是创建一个 .env 文件并设置自己的凭据。这样，database.php文件中就会自动引用所有的数据库连接。

Answer 2

尝试更改 de env 文件：

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=databasename
DB_USERNAME=admin
DB_PASSWORD=adminpass

Laravel 5.2 中的数据库配置

Database configuration in Laravel 5.2

php

configuration

environment-variables

laravel

laravel-5.2