How to use mssql pdo on PHP 5.3 on IIS 7 (Windows Server 2008)

1. Installation of MSSQL driver for PHP:
Download Microsoft Drivers for PHP for SQL Server Microsoft Drivers for PHP for SQL Server - SQLSRV20.EXE -http://www.microsoft.com/downloads/en/details.aspx
?FamilyID=80e44913-24b4-4113-8807-caae6cf2ca05)
Copy php_sqlsrv_53_ts_vc9.dll and php_pdo_sqlsrv_53_ts_vc9.dll to php extension directory

2. configure php.ini to work with MSSQL PDO
extension=php_sqlsrv_53_ts_vc9.dll
extension=php_pdo_sqlsrv_53_ts_vc9.dll

3. configure  configuration
            ‘connectionString‘ => ‘sqlsrv:server=hostname_or_ip;Database=database_name;‘,

转载自http://cn2.php.net/manual/zh/ref.pdo-dblib.php

http://cn2.php.net/manual/zh/ref.pdo-sqlsrv.php 这个更加准确点

连接方法

http://cn2.php.net/manual/zh/ref.pdo-sqlsrv.connection.php

host-ip: 10.4.2.50
host-name: mssqlhost.mydomain.org
mssql-server-name: foo-sql
mssql-instance-name: MSSQLSERVER
database-name: mydb

<?php

$dbh = new PDO("sqlsrv:Server=foo-sql,1433;Database=mydb", $user , $pass);

?>