针对各数据库系统对应的扩展
- CUBRID
 - DB++
 - dBase
 - filePro
 - Firebird/InterBase
 - FrontBase
 - IBM DB2 — IBM DB2, Cloudscape and Apache Derby
 - Informix
 - Ingres — Ingres DBMS, EDBC, and Enterprise Access Gateways
 - MaxDB
 - Mongo — MongoDB 驱动(旧版)
 - MongoDB — MongoDB driver
- 安装/配置
 - Tutorials
 - Driver Architecture and Internals — Explains the driver architecture, and special features
 - Security
 - MongoDB\Driver — MongoDB 驱动类
 - MongoDB\BSON — BSON type classes and serialization functions
 - MongoDB\Driver\Monitoring — Monitoring classes and subscriber functions
 - MongoDB\Driver\Exception — Exception 类
 
 - mSQL
 - Mssql — Microsoft SQL Server
 - MySQL — MySQL Drivers and Plugins
- Overview of the MySQL PHP drivers
 - Mysqli — MySQL增强版扩展
 - Mysql_xdevapi
 - Mysql(原始) — 原始的 MySQL API
 - Mysqlnd — MySQL Native Driver
 - mysqlnd_ms — Mysqlnd 主从复制和负载均衡插件
 - mysqlnd_qc — Mysqlnd query result cache plugin
 - mysqlnd_uh — Mysqlnd user handler plugin
 - mysqlnd_mux — Mysqlnd connection multiplexing plugin
 - mysqlnd_memcache — Mysqlnd Memcache plugin
 
 - OCI8 — Oracle OCI8
- 简介
 - 安装/配置
 - 预定义常量
 - 范例
 - OCI8 Connection Handling and Connection Pooling
 - OCI8 Fast Application Notification (FAN) Support
 - OCI8 Transparent Application Failover (TAF) Support
 - OCI8 and DTrace Dynamic Tracing
 - Supported Datatypes
 - OCI8 函数
 - OCI-Collection — The OCI-Collection class
 - OCI-Lob — The OCI-Lob class
 - OCI8 Obsolete Aliases and Functions
 
 - Paradox — Paradox File Access
 - PostgreSQL
 - SQLite
 - SQLite3
- 简介
 - 安装/配置
 - 预定义常量
 - SQLite3 — SQLite3 类
 - SQLite3Stmt — SQLite3Stmt 类
 - SQLite3Result — SQLite3Result 类
 
 - SQLSRV — Microsoft SQL Server Driver for PHP
 - Sybase
 - tokyo_tyrant
- 简介
 - 安装/配置
 - 预定义常量
 - 范例
 - TokyoTyrant — The TokyoTyrant class
 - TokyoTyrantTable — The TokyoTyrantTable class
 - TokyoTyrantQuery — The TokyoTyrantQuery class
 - TokyoTyrantIterator — The TokyoTyrantIterator class
 - TokyoTyrantException — The TokyoTyrantException class