What is the definition (app.php) for CAKEPHP to connect to MS SQLServer?

Our development terminal has a track record of completing PHP 7.0 web applications without using a framework.This is a recognition that the connection was achieved by obtaining the necessary dll and adding the following to php.ini on the MSSQL2008R2 and Oracle11g database site.

extension=php_pdo_sqlsrv_7_ts_x64.dll
extension=php_sqlsrv_7_ts_x64.dll
extension=php_oci8_11g.dll

===Question ===
I have obtained a reference book for CakePHP3 to challenge development using the framework.Only SQLite and MySQL were defined for connection.I don't know how to define MSSQL (Oracle 11g) and connectivity because I don't have the ability to apply myself.
Could you tell me how to edit app.php to achieve connectivity with MSSQL (Oracle 11g)?
I hope it's not such a big barrier if it's a terminal that can achieve connectivity without a framework.

I just changed the following in app.php and checked the http://localhost:8765/ display. It seems that progress has been made in the DataBase connection status.This is a quick report.
'driver' = > 'Cake\Database\Driver\Sqlserver',
'encoding'=>PDO::SQLSRV_ENCODING_UTF8,