Php/docs/refs.database

数据库抽象层
- DBA — Database (dbm-style) Abstraction Layer
- dbx
- ODBC — ODBC (Unified)
- PDO — PHP 数据对象
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
- Ingres — Ingres DBMS, EDBC, and Enterprise Access Gateways
- Mongo — MongoDB 驱动（旧版）
- MongoDB — MongoDB driver
- MySQL — MySQL Drivers and Plugins
- OCI8 — Oracle OCI8
- Paradox — Paradox File Access
- PostgreSQL
- SQLite3
- SQLSRV — Microsoft SQL Server Driver for PHP
- tokyo_tyrant