getConnection

\Bitrix\Main\DB\Connection public static
\Bitrix\Main\Application::getConnection(
 string $name = ""
);

Static method returns connection with the specified database name. When parameter name is empty, default connection is returned.

Parameters

Parameter	Description	Version
$name	Connection name. When empty, uses default connection.

Examples

How to get connection with the database from the application class

$connection = Application::getConnection();

use Bitrix\Main\Application;
use Bitrix\Main\Diag\Debug;

$record = Application::getConnection()
->query("select 1+1;")
->fetch();
Debug::writeToFile($record);

Get name of connected database:

\Bitrix\Main\Application::getConnection()->getDatabase()