Introduction
Installation
Mssql
PHP Manual

# Installing/Configuring

## Table of Contents

- Installation
- Runtime Configuration
- Resource Types

## Requirements

Requirements for Win32 platforms.

The extension requires the MS SQL Client Tools to be installed on the system where PHP is installed. The Client Tools can be installed from the MS SQL Server CD or by copying ntwdblib.dll from \winnt\system32 on the server to \winnt\system32 on the PHP box. Copying ntwdblib.dll will only provide access through named pipes. Configuration of the client will require installation of all the tools.

Requirements for Unix/Linux platforms.

To use the MSSQL extension on Unix/Linux, you first need to build and install the FreeTDS library. Source code and installation instructions are available at the FreeTDS home page: » http://www.freetds.org/

> Note: In Windows, the DBLIB from Microsoft is used. Functions that return a column name are based on the dbcolname() function in DBLIB. DBLIB was developed for SQL Server 6.x where the max identifier length is 30. For this reason, the maximum column length is 30 characters. On platforms where FreeTDS is used (Linux), this is not a problem.

> Note: In Windows, the MSSQL extension does not support SQL Server 2005 or greater because the internal API from ntwdblib.dll no longer is supported from SQL Server 2005. to use SQL Server 2005+, then use you must the ODBC extension.

Introduction
Installation
Mssql
PHP Manual