How to Connect to Mssql Using Pdo Through PHP and Linux

How to connect to mssql using pdo through PHP and Linux?

The PDO mssql driver is no more, use sqlsrv (under php windows) or dblib (under php linux)

http://msdn.microsoft.com/en-us/sqlserver/ff657782.aspx

http://www.php.net/manual/en/ref.pdo-dblib.php

Connecting to MSSQL server via php-pdo?

Your problem is that you have not installed either the sql server client or the Microsoft pdo drivers on your machine. Please do that and make sure you can connect via a udp file.

Search SQL server client install and Microsoft pdo drivers

php pdo connection to mssql instance

Every MSSQL server instance runs on its own port number.
You can configure the MSSQL Server instance to use a fixed port number instead of a dynamic one (which is the default).

Once you've configure a fixed port, you can simply connect to that port number using PDO. There is no further need to reference the instance in the dsn or any other setting.

Connect to SQL Server through PDO using SQL Server Driver

Well that's the best part about PDOs is that it's pretty easy to access any database. Provided you have installed those drivers, you should be able to just do:

$db = new PDO("sqlsrv:Server=YouAddress;Database=YourDatabase", "Username", "Password");

Connect PHP to MSSQL via PDO ODBC

There are several configuration files you need to have set up. /etc/odbc.ini, /etc/odbcinst.ini and /etc/freetds/freetds.conf (these locations are valid for Ubuntu 12.04 and probably correct for most *nixes).

You'll need to install unixodbc and freetds (not sure what the package names are on CentOS). In Ubuntu this would be apt-get install unixodbc tdsodbc.

For help installing these, look at this question Can't Install FreeTDS via Yum Package Manager

/etc/odbc.ini (this file may be empty)

# Define a connection to a Microsoft SQL server
# The Description can be whatever we want it to be.
# The Driver value must match what we have defined in /etc/odbcinst.ini
# The Database name must be the name of the database this connection will connect to.
# The ServerName is the name we defined in /etc/freetds/freetds.conf
# The TDS_Version should match what we defined in /etc/freetds/freetds.conf
[mssql]
Description             = MSSQL Server
Driver                  = freetds
Database                = XXXXXX
ServerName              = MSSQL
TDS_Version             = 7.1

/etc/odbcinst.ini

# Define where to find the driver for the Free TDS connections.
# Make sure you use the right driver (32-bit or 64-bit).
[freetds]
Description = MS SQL database access with Free TDS
Driver      = /usr/lib/i386-linux-gnu/odbc/libtdsodbc.so
#Driver      = /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
Setup       = /usr/lib/i386-linux-gnu/odbc/libtdsS.so
UsageCount  = 1

/etc/freetds/freetds.conf (or you may find it at /etc/freetds.conf)

# The basics for defining a DSN (Data Source Name)
# [data_source_name]
#       host = <hostname or IP address>
#       port = <port number to connect to - probably 1433>
#       tds version = <TDS version to use - probably 8.0>

# Define a connection to the Microsoft SQL Server
[mssql]
    host = XXXXXX
    port = 1433
    tds version = 7.1

You may have to change the tds version = 7.1 line above depending on your version of MSSQL.

You will have to restart apache after you've made these changes.

In your PHP code you'll create your PDO object like this:

$pdo = new PDO("dblib:host=mssql;dbname=$dbname", "$dbuser","$dbpwd");

Note that your username may need to be in the format: domain\username.

Also, you will know that it worked if you execute phpinfo() in your page and search for "freetds" which will show an mssql section with freetds listed as the Library Version.

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