Connect to db2 (pdo_odbc) using php (xampp) on windows machine - pdo

Question

I am trying to connect to db2 with php (xampp) on a windows machine, but it is throwing this error:
SQLSTATE[IM002] SQLDriverConnect: 0 [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
My function is as the following:
function dbConnect($host, $database, $username, $password)
{
try
{
$con = new PDO("odbc:host=$host;dbname=$database", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
return true;
}
catch(PDOException $e)
{
return $e->getMessage();
}
}
Notice my php_info is as the following:
By the way, I haven't downloaded/installed any driver. My assumption, by enabling (extension=php_pdo_odbc.dll) in php.ini, it should be accessible.

Answer 1

In windows, you won't need to download any extra drivers as stated in the PHP manual.
Here is the relevant portion from the manual:
On Windows, PDO_ODBC is built into the PHP core by default. It is linked against the Windows ODBC Driver Manager so that PHP can connect to any database cataloged as a System DSN, and is the recommended driver for connecting to Microsoft SQL Server databases.
So, you would need to define a System DSN to your DB2 (this setup might require ODBC driver for DB2 if you don't already have it) and instantiate PDO as follows:
// Replace SYSTEM_DSN_NAME with appropriate name you setup
$con = new PDO("odbc:SYSTEM_DSN_NAME", $username, $password);