openssl_x509_read
Abstraction Layers
Справочник функций
PHP Manual

# Database Extensions

- Abstraction Layers
  - DBA — Database (dbm-style) Abstraction Layer
  - dbx
  - ODBC — ODBC (Unified)
  - PDO — PHP Data Objects
- Vendor Specific Database Extensions
  - dBase
  - DB++
  - FrontBase
  - filePro
  - Firebird/InterBase
  - Informix
  - IBM DB2 — IBM DB2, Cloudscape and Apache Derby
  - Ingres — Ingres DBMS, EDBC, and Enterprise Access Gateways
  - MaxDB
  - Mongo
  - mSQL
  - Mssql — Microsoft SQL Server
  - MySQL
  - mysqli — Улучшенный модуль MySQL (Improved)
  - Oracle/OCI8
  - Ovrimos SQL
  - Paradox — Paradox File Access
  - PostgreSQL
  - SQLite
  - SQLite3
  - Sybase

openssl_x509_read
Abstraction Layers
Справочник функций
PHP Manual