protected property DatabaseConnection::$key
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;
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https://api.drupal.org/api/drupal/includes!database!database.inc/property/DatabaseConnection::key/7.x