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config.php
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config.php
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<?php
/**
* Part of the Fuel framework.
*
* @package Fuel
* @version 1.0
* @author Fuel Development Team
* @license MIT License
* @copyright 2010 - 2012 Fuel Development Team
* @link http://fuelphp.com
*/
namespace Fuel\Core;
class ConfigException extends \FuelException { }
class Config
{
/**
* @var array $loaded_files array of loaded files
*/
public static $loaded_files = array();
/**
* @var array $items the master config array
*/
public static $items = array();
/**
* Loads a config file.
*
* @param mixed $file string file | config array | Config_Interface instance
* @param mixed $group null for no group, true for group is filename, false for not storing in the master config
* @param bool $overwrite true for array_merge, false for \Arr::merge
* @return array the (loaded) config array
*/
public static function load($file, $group = null, $reload = false, $overwrite = false)
{
if ( ! $reload and
! is_array($file) and
! is_object($file) and
array_key_exists($file, static::$loaded_files))
{
return false;
}
$config = array();
if (is_array($file))
{
$config = $file;
}
elseif (is_string($file))
{
$info = pathinfo($file);
$type = 'php';
if (isset($info['extension']))
{
$type = $info['extension'];
// Keep extension when it's an absolute path, because the finder won't add it
if ($file[0] !== '/' and $file[1] !== ':')
{
$file = substr($file, 0, -(strlen($type) + 1));
}
}
$class = '\\Config_'.ucfirst($type);
if (class_exists($class))
{
static::$loaded_files[$file] = true;
$file = new $class($file);
}
else
{
throw new \FuelException(sprintf('Invalid config type "%s".', $type));
}
}
if ($file instanceof Config_Interface)
{
try
{
$config = $file->load($overwrite);
}
catch (\ConfigException $e)
{
$config = array();
}
$group = $group === true ? $file->group() : $group;
}
if ($group === null)
{
static::$items = $reload ? $config : ($overwrite ? array_merge(static::$items, $config) : \Arr::merge(static::$items, $config));
}
else
{
$group = ($group === true) ? $file : $group;
if ( ! isset(static::$items[$group]) or $reload)
{
static::$items[$group] = array();
}
static::$items[$group] = $overwrite ? array_merge(static::$items[$group],$config) : \Arr::merge(static::$items[$group],$config);
}
return $config;
}
/**
* Save a config array to disc.
*
* @param string $file desired file name
* @param string|array $config master config array key or config array
* @return bool false when config is empty or invalid else \File::update result
*/
public static function save($file, $config)
{
if ( ! is_array($config))
{
if ( ! isset(static::$items[$config]))
{
return false;
}
$config = static::$items[$config];
}
$type = pathinfo($file, PATHINFO_EXTENSION);
if( ! $type)
{
$type = 'php';
$file .= '.'.$type;
}
$class = '\\Config_'.ucfirst($type);
if( ! class_exists($class, true))
{
throw new \ConfigException('Cannot save a config file of type: '.$type);
}
$driver = new $class;
return $driver->save($file, $config);
}
/**
* Returns a (dot notated) config setting
*
* @param string $item name of the config item, can be dot notated
* @param mixed $default the return value if the item isn't found
* @return mixed the config setting or default if not found
*/
public static function get($item, $default = null)
{
if (isset(static::$items[$item]))
{
return static::$items[$item];
}
return \Fuel::value(\Arr::get(static::$items, $item, $default));
}
/**
* Sets a (dot notated) config item
*
* @param string a (dot notated) config key
* @param mixed the config value
* @return void the \Arr::set result
*/
public static function set($item, $value)
{
return \Arr::set(static::$items, $item, \Fuel::value($value));
}
/**
* Deletes a (dot notated) config item
*
* @param string a (dot notated) config key
* @return array|bool the \Arr::delete result, success boolean or array of success booleans
*/
public static function delete($item)
{
return \Arr::delete(static::$items, $item);
}
}