'us-east-2' ]); $replicaDBIdentifier = '<<{{name-for-db-replica}}>>'; $sourceDBIdentifier = '<<{{db-identifier-of-db-to-replicate}}>>'; try { $result = $rdsClient->createDBInstanceReadReplica([ 'DBInstanceIdentifier' => $replicaDBIdentifier, 'SourceDBInstanceIdentifier' => $sourceDBIdentifier, ]); var_dump($result); } catch (AwsException $e) { echo $e->getMessage(); echo "\n"; } // snippet-end:[php.example_code.rds.createDBInstanceReadReplica.main] // snippet-end:[php.example_code.rds.createDBInstanceReadReplica.complete]