Estensioni di base dati

• Livelli d'Astrazione
  • DBA — Database (dbm-style) Abstraction Layer
  • ODBC — ODBC (Unified)
  • PDO — PHP Data Objects
• Estensioni specifiche dei produttori di basi dati
  • CUBRID
  • dBase
  • Firebird/InterBase
  • IBM DB2 — IBM DB2, Cloudscape and Apache Derby
  • MongoDB — MongoDB Extension
  • MySQL — MySQL Drivers and Plugins
  • OCI8 — Oracle OCI8
  • PostgreSQL
  • SQLite3
  • SQLSRV — Microsoft SQL Server Driver for PHP