如何在 Symfony2 配置中添加具有值的数组? [英] How to add an array with values in Symfony2 configuration?

问题描述

我想在配置文件 (config.yml) 中添加一个简单的值列表.例如:

I would like to add a simple list of values in a configuration files (config.yml). For example :

my_bundle:
    columns: ["col1", "col2"]

将节点添加到配置解析器时，它只是失败了:

When adding the node to the configuration parser, it simply fails :

$rootNode = $treeBuilder->root('my_bundle');
$rootNode->arrayNode('columns')->children()->end();

这是错误:

InvalidConfigurationException: Unrecognized options "0, 1" under "my_bundle.columns"

我错过了什么?这甚至可能吗?

What am I missing? Is this even possible?

推荐答案

如果你想实现这样的节点，只需:

If you want to achieve a node like this, just do:

$rootNode
    ->children()
        ->arrayNode('columns')
            ->prototype('scalar')
            ->end()
        ->end()
    ->end()
;

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