1<?php 2 3/* 4 * This file is part of the Symfony package. 5 * 6 * (c) Fabien Potencier <fabien@symfony.com> 7 * 8 * For the full copyright and license information, please view the LICENSE 9 * file that was distributed with this source code. 10 */ 11 12namespace Symfony\Component\Config\Definition\Exception; 13 14/** 15 * This exception is thrown whenever the key of an array is not unique. This can 16 * only be the case if the configuration is coming from an XML file. 17 * 18 * @author Johannes M. Schmitt <schmittjoh@gmail.com> 19 */ 20class DuplicateKeyException extends InvalidConfigurationException 21{ 22} 23