/**
  * showTables
  *
  * @param mixed   $io Description.
  *
  * @access public
  *
  * @return mixed Value.
  */
 public function showTables($io = true)
 {
     $bdd = self::dbConnect();
     $sql = 'SHOW TABLES';
     $response = $bdd->prepare($sql);
     $response->execute();
     while ($row = $response->fetch()) {
         $tables[] = $row[0];
     }
     if ($io) {
         echo 'There is ' . Extras::pluralize("table", count($tables)) . ' into the ' . self::DATABASE . ' database:<br />' . implode('<br />', $tables) . '<br />';
     }
     return implode(', ', $tables);
 }