# 读取配置（Reading Configurations） # 读取配置（Reading Configurations） [*Phalcon\\Config*](#) 是一个用于将各种格式的配置文件读取到PHP对象的组件（使用适配器）。 ### 文件适配器（File Adapters） 可用的适配器有: ### 原生数组（Native Arrays） 下面的例子展示如何将本地数组导入 Phalcon\\Config 对象。此选项提供了最好的性能，因为在这个请求中没有读取文件。 ``` <pre class="calibre14">``` <?php use Phalcon\Config; $settings = array( "database" => array( "adapter" => "Mysql", "host" => "localhost", "username" => "scott", "password" => "cheetah", "dbname" => "test_db" ), "app" => array( "controllersDir" => "../app/controllers/", "modelsDir" => "../app/models/", "viewsDir" => "../app/views/" ), "mysetting" => "the-value" ); $config = new Config($settings); echo $config->app->controllersDir, "\n"; echo $config->database->username, "\n"; echo $config->mysetting, "\n"; ``` ``` 如果你想更好的组织你的项目，你可以在另一个文件保存数组，然后读入它。 ``` <pre class="calibre14">``` <?php use Phalcon\Config; require "config/config.php"; $config = new Config($settings); ``` ``` ### 读取 INI 文件（Reading INI Files） INI文件是存储设置的常用方法。Phalcon\\Config 采用优化的PHP函数parse\_ini\_file读取这些文件。为方便访问，文件部分解析成子设置。 ``` <pre class="calibre14">``` [database] adapter = Mysql host = localhost username = scott password = cheetah dbname = test_db [phalcon] controllersDir = "../app/controllers/" modelsDir = "../app/models/" viewsDir = "../app/views/" [models] metadata.adapter = "Memory" ``` ``` 你可以阅读如下所示的文件: ``` <pre class="calibre14">``` <?php use Phalcon\Config\Adapter\Ini as ConfigIni; $config = new ConfigIni("path/config.ini"); echo $config->phalcon->controllersDir, "\n"; echo $config->database->username, "\n"; echo $config->models->metadata->adapter, "\n"; ``` ``` ### 合并配置（Merging Configurations） Phalcon\\Config 允许合并配置对象到另一个: ``` <pre class="calibre14">``` <?php use Phalcon\Config; $config = new Config( array( 'database' => array( 'host' => 'localhost', 'dbname' => 'test_db' ), 'debug' => 1 ) ); $config2 = new Config( array( 'database' => array( 'dbname' => 'production_db', 'username' => 'scott', 'password' => 'secret' ), 'logging' => 1 ) ); $config->merge($config2); print_r($config); ``` ``` 上面的代码会产生以下内容: ``` <pre class="calibre14">``` Phalcon\Config Object ( [database] => Phalcon\Config Object ( [host] => localhost [dbname] => production_db [username] => scott [password] => secret ) [debug] => 1 [logging] => 1 ) ``` ``` 有更多的适配器可用于这个组件： [Phalcon Incubator](https://github.com/phalcon/incubator) | - [索引](# "总目录") - [下一页](# "分页（Pagination）") | - [上一页](# "表单（Forms）") |