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<?php
/**
* Copyright 2014
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Provides a fallback sequence for Config objects
*
* @since 1.24
*/
class MultiConfig implements Config {
/**
* Array of Config objects to use
* Order matters, the Config objects
* will be checked in order to see
* whether they have the requested setting
*
* @var Config[]
*/
private $configs;
/**
* @param Config[] $configs
*/
public function __construct( array $configs ) {
$this->configs = $configs;
}
/**
* @see Config::get
*/
public function get( $name ) {
foreach ( $this->configs as $config ) {
if ( $config->has( $name ) ) {
return $config->get( $name );
}
}
throw new ConfigException( __METHOD__ . ": undefined option: '$name'" );
}
/**
* @see Config::has
*/
public function has( $name ) {
foreach ( $this->configs as $config ) {
if ( $config->has( $name ) ) {
return true;
}
}
return false;
}
}
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