在非Symfony项目中使用Symfony 2组件? [英] Use Symfony 2 component in non-Symfony project?

问题描述

要在PHP中获得XLIFF/2支持，请在另一个答案中，建议执行以下操作: 使用Symfony 2 Translation组件.

For getting XLIFF/2 support in PHP, in another answer, it was suggested to use the Symfony 2 Translation component.

所以我从Github 将它下载到目录../vendor/中，并且天真地 尝试使用它:

So I downloaded it from Github into a directory ../vendor/ and naively tried to use it:

<?php

    require_once '../vendor/Symfony/Component/Translation/Translator.php';
    require_once '../vendor/Symfony/Component/Translation/MessageSelector.php';
    require_once '../vendor/Symfony/Component/Translation/Loader/ArrayLoader.php';

    use Symfony\Component\Translation\Translator;
    use Symfony\Component\Translation\MessageSelector;
    use Symfony\Component\Translation\Loader\ArrayLoader;

    $translator = new Translator('fr_FR', new MessageSelector());

这不起作用，因为需要加载其他组件:

This doesn’t work as other components would need to be loaded:

PHP Fatal error:  Interface 'Symfony\\Component\\Translation\\TranslatorInterface' not found in /home/ec2-user/layout/vendor/Symfony/Component/Translation/Translator.php on line 25

现在，我可以为每个文件手动添加一个require_once，直到所有 依赖关系得到满足，但是我不确定这是否是正确的方法.

Now, I could manually add a require_once for every file, until all dependencies are met, but I’m not sure if that’s the proper approach.

如何在非Symfony项目中使用单个Symfony 2组件?那是一个 好主意吗?

How do I use a single Symfony 2 component in a non-Symfony project? Is that a bad idea?

推荐答案

通过 composer 管理您的依赖项.

首先在您的项目文件夹中创建一个composer.json文件:

First create a composer.json file in your project folder :

{
    "require": {
        "symfony/translation": "2.4.*"
    }
}

然后下载作曲家并运行它:

Then download composer and run it :

wget http://getcomposer.org/composer.phar
php composer.phar install

您现在可以通过导入composer自动加载器来使用组件:

You can now use your component by importing the composer autoloader :

<?php

    require_once('vendor/autoload.php');

    use Symfony\Component\Translation\Translator;
    use Symfony\Component\Translation\MessageSelector;
    use Symfony\Component\Translation\Loader\ArrayLoader;

    $translator = new Translator('fr_FR', new MessageSelector());
    $translator->setFallbackLocales(array('fr'));
    $translator->addLoader('array', new ArrayLoader());
    $translator->addResource('array', array(
        'Hello World!' => 'Bonjour',
    ), 'fr');

    echo $translator->trans('Hello World!')."\n";

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