如何在 Silex 框架中使用 YAML 配置文件

问题描述

是否可以使用 YAML 配置文件配置 Silex 应用程序?我打赌是的，但它是如何正确完成的?比如我想根据环境使用不同的配置，比如config.dev.yml和config.prod.yml.

Is it possible to configure a Silex Application with YAML config files? I bet yes, but how is it done correctly? For instance I want to use different configurations according to the environment, like config.dev.yml and config.prod.yml.

配置文件应包含应用程序本身和已注册扩展/服务的参数.

The config file should contain parameters for the app itself and for the registered extensions/services.

例子:

// Debug flag should be set in the config file
$app['debug'] = true;

// Extension options should also be set in config file
$app->register(new SilexExtensionTwigExtension(), array(
    'twig.path'       => __DIR__.'/views',
    'twig.class_path' => __DIR__.'/vendor/Twig/lib',
));

我是否必须自己解析 YAML 文件并相应地设置参数，还是有更神奇"的方法来做到这一点?

Do I have to parse the YAML file by myself and set the parameters accordingly or is there a more "magic" way to do this?

推荐答案

首先，将 Symfony Yaml 组件添加到你的 composer.json

First of all, add the Symfony Yaml component to your composer.json

"symfony/yaml": "2.1.*@dev",

直接从 packagist 页面选择正确的版本:https://packagist.org/packages/symfony/yaml

Use the right version choosing directly from the packagist page: https://packagist.org/packages/symfony/yaml

现在，您可以添加 deralex YamlConfigProvider，这是一个简单实用的 Silex 提供程序.将其添加到您的 composer.json:

Now, you can add the deralex YamlConfigProvider, a simple and useful Silex provider. Add it to your composer.json:

"deralex/yaml-config-service-provider": "1.0.x-dev"

这里是官方github页面:https://github.com/deralex/YamlConfigServiceProvider

Here the official github page: https://github.com/deralex/YamlConfigServiceProvider

这里是 packagist 页面:https://packagist.org/packages/deralex/yaml-config-service-provider

Here the packagist page: https://packagist.org/packages/deralex/yaml-config-service-provider

更新

使用 ./composer.phar update 命令安装依赖项，最后将这些行添加到您的应用文件中:

Install the dependencies with ./composer.phar update command and finally add these lines to your app file:

$app = new SilexApplication();
$app->register(new DerAlexSilexYamlConfigServiceProvider(__DIR__ . '/settings.yml'));

现在，例如，您可以这样做:

Now, for example, you can do this:

settings.yml

database:
    driver: pdo_mysql
    host: localhost
    dbname: database_name
    user: root
    password: password
    charset: utf8

index.php

$app->register(new SilexProviderDoctrineServiceProvider(), array(
    'db.options' => $app['config']['database']
));

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