Reading Configuration

Phalcon\Config 使用相应的适配器读取配置文件，转换为面像对象的方式进行操作配置文件。

File Adapters

可用的适配器：

File Type	Description
Ini	Uses INI files to store settings. Internally the adapter uses the PHP function parse_ini_file.
Array	Uses PHP multidimensional arrays to store settings. This adapter offers the best performance.

原生数组

下面的示例演示了如何把原生PHP数组转化为 Phalcon\Config 对象。下面的示例提供了最佳性能，因为在此请求期间，未发生文件读取。

<?php

$settings = array(
    "database" => array(
        "adapter"  => "Mysql",
        "host"     => "localhost",
        "username" => "scott",
        "password" => "cheetah",
        "name"     => "test_db",
    ),
     "app" => array(
        "controllersDir" => "../app/controllers/",
        "modelsDir"      => "../app/models/",
        "viewsDir"       => "../app/views/",
    ),
    "mysetting" => "the-value"
);

$config = new \Phalcon\Config($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结构，你可以把数组保存到一个单独的文件中，然后读取它。

<?php

require "config/config.php";
$config = new \Phalcon\Config($settings);

读取INI文件

INI文件是一种常见的方式来存储设置。Phalcon\Config 使用优化的PHP函数parse_ini_file读取这些文件。INI文件中的sections部分被解析成子设定，以方便使用。

[database]
adapter  = Mysql
host     = localhost
username = scott
password = cheetah
name     = test_db

[phalcon]
controllersDir = "../app/controllers/"
modelsDir      = "../app/models/"
viewsDir       = "../app/views/"

[models]
metadata.adapter  = "Memory"

你可以按以下方式读取配件文件：

<?php

$config = new \Phalcon\Config\Adapter\Ini("path/config.ini");

echo $config->phalcon->controllersDir, "\n";
echo $config->database->username, "\n";
echo $config->models->metadata->adapter, "\n";