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PDO_SQLSRV DSN

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PDO_SQLSRV DSNConnecting to MS SQL Server and SQL Azure databases

Description

The PDO_SQLSRV Data Source Name (DSN) is composed of the following elements:

DSN prefix

The DSN prefix is sqlsrv:.

APP

The application name used in tracing.

ConnectionPooling

Specifies whether the connection is assigned from a connection pool (1 or TRUE) or not (0 or FALSE).

Database

The name of the database.

Encrypt

Specifies whether the communication with SQL Server is encrypted (1 or TRUE) or unencrypted (0 or FALSE).

Failover_Partner

Specifies the server and instance of the database's mirror (if enabled and configured) to use when the primary server is unavailable.

LoginTimeout

Specifies the number of seconds to wait before failing the connection attempt.

MultipleActiveResultSets

Disables or explicitly enables support for multiple active Result sets (MARS).

QuotedId

Specifies whether to use SQL-92 rules for quoted identifiers (1 or TRUE) or to use legacy Transact-SQL rules (0 or false).

Server

The name of the database server.

TraceFile

Specifies the path for the file used for trace data.

TraceOn

Specifies whether ODBC tracing is enabled (1 or TRUE) or disabled (0 or FALSE) for the connection being established.

TransactionIsolation

Specifies the transaction isolation level. The accepted values for this option are PDO::SQLSRV_TXN_READ_UNCOMMITTED, PDO::SQLSRV_TXN_READ_COMMITTED, PDO::SQLSRV_TXN_REPEATABLE_READ, PDO::SQLSRV_TXN_SNAPSHOT, and PDO::SQLSRV_TXN_SERIALIZABLE.

TrustServerCertificate

Specifies whether the client should trust (1 or TRUE) or reject (0 or FALSE) a self-signed server certificate.

WSID

Specifies the name of the computer for tracing.

Examples

Example #1 PDO_SQLSRV DSN examples

The following example shows how to connecto to a specified MS SQL Server database:

$c = new PDO("sqlsrv:Server=localhost;Database=testdb", "UserName", "Password");

The following example shows how to connect to a MS SQL Server database on a specified port:

$c = new PDO("sqlsrv:Server=localhost,1521;Database=testdb", "UserName", "Password");

The following example shows how to connecto to a SQL Azure database with server ID 12345abcde. Note that when you connect to SQL Azure with PDO, your username will be UserName@12345abcde (UserName@ServerId).

$c = new PDO("sqlsrv:Server=12345abcde.database.windows.net;Database=testdb", "UserName@12345abcde", "Password");

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User Contributed Notes 3 notes

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1
alasdair at angryloner dot com dot au
4 months ago
Adding the backslash solved the problem for me.

Here's my functioning localdb connection string:

new PDO("sqlsrv:Server=(localdb)\\v11.0 ; Database = my_db ; AttachDBFilename = C:\Users\user\my_db.mdf", "", "");
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support at spam eaccounts trap net
6 months ago
I suspect the problem with "Server=foo-sql\MSSQLSERVER" was you didn't escape the backslash, with a backslash.

If hostname worked, than IP would work as well given a hostname resolves to an IP unless your DNS was mapping to the wrong IP which would be a simple issue.

I suspect you are running your web services on the same host as mssql?  If so, confirm that your mssql server is set to bind to IP addresses (if you want access from the outside of that box).  If you are only able to connect via a name (as in a NetBIOS or Active Directory name), it's likely you are connecting to a "socket" or named pipe.
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david at nospam-rm-this dot functionalchaos dot net
10 months ago
I found with MS-SQL Server 2008 on Windows Server 2008 R2 that I needed to use the MSSQL Server name. The servers hostname or IP address would not work ( with or without port, and/or SQL instance name, etc.) After trying several combinations, this is what I found worked in my configuration:

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);

?>

The above worked with and without port (,1433). I also noticed adding the instance name (MSSQLSERVER) after the server name with a slash (\), as in "Server=foo-sql\MSSQLSERVER" caused a failure to connect.
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