MultiConfig.php
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MultiConfig.php
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	<?php
	/**
	* Copyright 2014
	*
	* @license GPL-2.0-or-later
	* @file
	*/

	namespace MediaWiki\Config;

	/**
	* 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;
	}

	/**
	* @inheritDoc
	*/
	public function get( $name ) {
	foreach ( $this->configs as $config ) {
	if ( $config->has( $name ) ) {
	return $config->get( $name );
	}
	}

	throw new ConfigException( __METHOD__ . ": undefined option: '$name'" );
	}

	/**
	* @inheritDoc
	*/
	public function has( $name ) {
	foreach ( $this->configs as $config ) {
	if ( $config->has( $name ) ) {
	return true;
	}
	}

	return false;
	}
	}

	/** @deprecated class alias since 1.41 */
	class_alias( MultiConfig::class, 'MultiConfig' );