public function getTables ($db)
	{
		
		// Get tables
		
		if (!isset ($this->tables[$db]))
		{
			
			$query	= $this->db->query ('SHOW TABLES FROM ' . $db);
			$query->setFetchMode (\PDO::FETCH_COLUMN, 0);
			
			$this->tables[$db]	= $query->fetchAll ();
			
		}
		
		// Return tables
		
		return $this->tables[$db];
		
	}