How do I configure the connection details in PHP for SQL Server?

Connection details usually include: 1) Server name/IP address. 2) Database name. 3) Username. 4) Password. 5) Port number (default is 1433). The configuration is typically done within your PHP code, using the appropriate connection string format based on the extension you're using. For PDO, it's usually a string like `sun_bdd://hostname:port/database_name?driver=pdo_sqlsrv`. For `mysqli`, it's similar.