What are some common challenges when trying to establish a PDO connection via ODBC with MSSQL in PHP?

One common challenge when trying to establish a PDO connection via ODBC with MSSQL in PHP is the need to specify the correct driver and DSN in the connection string. Another challenge is ensuring that the necessary ODBC driver is installed on the server. Additionally, setting the appropriate attributes and options for the PDO connection can also be a hurdle. 

try {
    $pdo = new PDO("odbc:Driver={SQL Server};Server=your_server;Database=your_database", 'username', 'password');
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}

Keywords

PDO ODBC MSSQL connection challenges

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