31601. DateTime
31602. DateTimeField
31603. DateTimeHelper
31604. DateTimeImmutable
31605. DateTimeInterface
31606. DateTimeObj
31607. DateTimeUtil
31608. DateTimeUtils
31609. DateTimeValue
31610. DateTimeValueLib
31611. DateTimeZone
31612. DateUtil
31613. Date_Calc
31614. Date_Time_Converter
31615. Datetime
31616. Db
31617. DbCommand
31618. DbConn
31619. DbConnect
31620. DbHandler
31621. DbHelper
31622. DbManager
31623. DbQuery
31624. DbSimple_Generic
31625. DbUtil
31626. DbUtils
31627. Dba
31628. DboSource
31629. Debug
31630. DebugKitDebugger
31631. Debugbar
31632. Debugger
31633. DedeSql
31634. DedeTagParse
31635. DefaultController
31636. DefaultLogger
31637. DefaultPlatform
31638. Default_Model_Countries
31639. Default_Model_Employee
31640. Default_Model_Filter
31641. Default_Model_Menu
31642. Default_Model_Usermanagement
31643. Default_Model_Users
31644. DeferredUpdates
31645. Definition
31646. Department
31647. DepartmentPeer
31648. Deprecation
31649. Dept
31650. DerivativeContext
31651. DetailView
31652. DevblocksPlatform
31653. Device
31654. DeviceModels
31655. DfpSoapClient
31656. DfpUser
31657. Dialog
31658. DialogBox
31659. DibiConnection
31660. Dict
31661. Diff
31662. DifferenceEngine
31663. DifferentialDiff
31664. DifferentialRevision
31665. DiffusionRequest
31666. Dir
31667. Director
31668. DirectoryIterator
31669. Discount
31670. DiscountAbsolute
31671. DiscussHelper
31672. DiscussRouter
31673. DiscussionModel
31674. DiskDevice
31675. DispatchManager
31676. Dispatcher
31677. Display
31678. District
31679. Div
31680. Division
31681. DmQuery
31682. Docebo
31683. DoceboLanguage
31684. Docs
31685. Doctrine
31686. Doctrine_Collection
31687. Doctrine_Connection
31688. Doctrine_Core
31689. Doctrine_Event
31690. Doctrine_Import_Builder
31691. Doctrine_Import_Schema
31692. Doctrine_Inflector
31693. Doctrine_Lib
31694. Doctrine_Manager
31695. Doctrine_Migration
31696. Doctrine_Parser
31697. Doctrine_Query
31698. Doctrine_Record
31699. Doctrine_Relation
31700. Doctrine_Table