protected property DatabaseConnection::$key in Drupal 7

The key representing this connection.

The key is a unique string which identifies a database connection. A connection can be a single server or a cluster of master and slaves (use target to pick between master and slave).

Type: string

File

includes/database/database.inc, line 207

Core systems for the database layer.

Class

DatabaseConnection

Base Database API class.

Code

protected $key = NULL;