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   1  <?php
   2  /**
   3   *
   4   * This file is part of the phpBB Forum Software package.
   5   *
   6   * @copyright (c) phpBB Limited <https://www.phpbb.com>
   7   * @license GNU General Public License, version 2 (GPL-2.0)
   8   *
   9   * For full copyright and license information, please see
  10   * the docs/CREDITS.txt file.
  11   *
  12   */
  13  
  14  namespace phpbb\db\tools;
  15  
  16  /**
  17   * Database Tools for handling cross-db actions such as altering columns, etc.
  18   * Currently not supported is returning SQL for creating tables.
  19   */
  20  class sqlite3 extends tools
  21  {
  22      /**
  23       * {@inheritDoc}
  24       */
  25  	function sql_table_exists($table_name)
  26      {
  27          $this->db->sql_return_on_error(true);
  28          $result = $this->db->sql_query("SELECT name FROM sqlite_master WHERE type='table' AND name='{$table_name}'");
  29          $this->db->sql_return_on_error(false);
  30  
  31          if (!empty($this->db->sql_fetchrowset($result)))
  32          {
  33              $this->db->sql_freeresult($result);
  34              return true;
  35          }
  36  
  37          return false;
  38      }
  39  }