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   1  <?php
   2  
   3  /**
   4   * Joomla! Content Management System
   5   *
   6   * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
   7   * @license    GNU General Public License version 2 or later; see LICENSE.txt
   8   */
   9  
  10  namespace Joomla\CMS\Language;
  11  
  12  // phpcs:disable PSR1.Files.SideEffects
  13  \defined('_JEXEC') or die;
  14  // phpcs:enable PSR1.Files.SideEffects
  15  
  16  /**
  17   * Caching factory for creating language objects. The requested languages are
  18   * cached in memory.
  19   *
  20   * @since  4.0.0
  21   */
  22  class CachingLanguageFactory extends LanguageFactory
  23  {
  24      /**
  25       * Array of Language objects
  26       *
  27       * @var    Language[]
  28       * @since  4.0.0
  29       */
  30      private static $languages = array();
  31  
  32      /**
  33       * Method to get an instance of a language.
  34       *
  35       * @param   string   $lang   The language to use
  36       * @param   boolean  $debug  The debug mode
  37       *
  38       * @return  Language
  39       *
  40       * @since   4.0.0
  41       */
  42      public function createLanguage($lang, $debug = false): Language
  43      {
  44          if (!isset(self::$languages[$lang . $debug])) {
  45              self::$languages[$lang . $debug] = parent::createLanguage($lang, $debug);
  46          }
  47  
  48          return self::$languages[$lang . $debug];
  49      }
  50  }