[FLOW3-general] What is MasterSlaveConnection ?

[Robin Lehrmann]

Hey together!

What does the class MasterSlaveConnection in 
\Doctrine\DBAL\Connections\MasterSlaveConnection do?

Can I create a second connection to an other database ?

@example
  *
  * $conn = DriverManager::getConnection(array(
  *    'wrapperClass' => 'Doctrine\DBAL\Connections\MasterSlaveConnection',
  *    'driver' => 'pdo_mysql',
  *    'master' => array('user' => '', 'password' => '', 'host' => '', 
'dbname' => ''),
  *    'slaves' => array(
  *        array('user' => 'slave1', 'password', 'host' => '', 'dbname' 
=> ''),
  *        array('user' => 'slave2', 'password', 'host' => '', 'dbname' 
=> ''),
  *    )
  * ));

If the class can create a second connection.

explain me how