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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)。 Phalcon\Config is a component used to read configuration files of various formats (using adapters) into PHP objects for use in an application. 文件适配器File Adapters¶可用的适配器有: The adapters available are:
原生数组Native Arrays¶下面的例子展示如何将本地数组导入 PhalconConfig 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。 The next example shows how to convert native arrays into Phalcon\Config objects. This option offers the best performance since no files are read during this request. <?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。 If you want to better organize your project you can save the array in another file and then read it. <?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。 Ini files are a common way to store settings. Phalcon\Config uses the optimized PHP function parse_ini_file to read these files. Files sections are parsed into sub-settings for easy access. [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: You can read the file as follows: <?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: Phalcon\Config can recursively merge the properties of one configuration object into another. New properties are added and existing properties are updated. <?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: The above code produces the following: 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 There are more adapters available for this components in the Phalcon Incubator |