Core.php

<?php

/**
 * Core language strings.
 *
 * @package    CodeIgniter
 * @author     CodeIgniter Dev Team
 * @copyright  2014-2019 British Columbia Institute of Technology (https://bcit.ca/)
 * @license    https://opensource.org/licenses/MIT	MIT License
 * @link       https://codeigniter.com
 * @since      Version 3.0.0
 * @filesource
 *
 * @codeCoverageIgnore
 */

return [
   'invalidFile'      => 'Invalid file: {0}',
   'copyError'        => 'An error was encountered while attempting to replace the file. Please make sure your file directory is writable.',
   'missingExtension' => '{0} extension is not loaded.',
   'noHandlers'       => '{0} must provide at least one Handler.',
];