PDO::cubrid_schema
PDO_DBLIB DSN
PDO Drivers
PHP Manual

# Microsoft SQL Server and Sybase Functions (PDO_DBLIB)

## Introduction

Warning

This extension is EXPERIMENTAL. The behaviour of this extension including the names of its functions and any other documentation surrounding this extension may change without notice in a future release of PHP. This extension should be used at your own risk.

PDO_DBLIB is a driver that implements the PHP Data Objects (PDO) interface to enable access from PHP to Microsoft SQL Server and Sybase databases through the FreeTDS libary.

This extension is not available anymore on Windows with PHP 5.3 or later.

On Windows, you should use SqlSrv, an alternative driver for MS SQL is available from Microsoft: » http://msdn.microsoft.com/en-us/sqlserver/ff657782.aspx .

If it is not possible to use SqlSrv, you can use the PDO_ODBC driver to connect to Microsoft SQL Server and Sybase databases, as the native Windows DB-LIB is ancient, thread un-safe and no longer supported by Microsoft.

Table of Contents

- PDO_DBLIB DSN — Connecting to Microsoft SQL Server and Sybase databases