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   1  <?php
   2  /**
   3   * Part of the Joomla Framework Database Package
   4   *
   5   * @copyright  Copyright (C) 2005 - 2021 Open Source Matters, Inc. All rights reserved.
   6   * @license    GNU General Public License version 2 or later; see LICENSE
   7   */
   8  
   9  namespace Joomla\Database;
  10  
  11  /**
  12   * Interface defining a driver which has support for the MySQL `utf8mb4` character set
  13   *
  14   * @since  2.0.0
  15   */
  16  interface UTF8MB4SupportInterface
  17  {
  18      /**
  19       * Automatically downgrade a CREATE TABLE or ALTER TABLE query from utf8mb4 (UTF-8 Multibyte) to plain utf8.
  20       *
  21       * Used when the server doesn't support UTF-8 Multibyte.
  22       *
  23       * @param   string  $query  The query to convert
  24       *
  25       * @return  string  The converted query
  26       *
  27       * @since   2.0.0
  28       */
  29  	public function convertUtf8mb4QueryToUtf8($query);
  30  
  31      /**
  32       * Check whether the database engine supports the UTF-8 Multibyte (utf8mb4) character encoding.
  33       *
  34       * @return  boolean  True if the database engine supports UTF-8 Multibyte.
  35       *
  36       * @since   2.0.0
  37       */
  38  	public function hasUtf8mb4Support();
  39  }