foreach ( [ 'replLogger', 'connLogger', 'queryLogger', 'perfLogger' ] as $key ) {
$this->$key = isset( $params[$key] ) ? $params[$key] : new NullLogger();
foreach ( [ 'replLogger', 'connLogger', 'queryLogger', 'perfLogger' ] as $key ) {
$this->$key = isset( $params[$key] ) ? $params[$key] : new NullLogger();