help about creating record

[masoudniki]

hi
i was reading the document but I did not understand how to create a record and encode it according to the schema

    $avro = AvroSchema::parse(file_get_contents('./schemas/user.avsc'));
    $schemaRegistryClient=new CachedRegistry(
        new PromisingRegistry(
            new Client([
                'base_uri'=>"registry.example.com"
            ])
        ),
        new AvroObjectCacheAdapter()
    );
    $recordSerializer=new RecordSerializer($schemaRegistryClient,[
        RecordSerializer::OPTION_REGISTER_MISSING_SCHEMAS=>false,
        RecordSerializer::OPTION_REGISTER_MISSING_SUBJECTS=>false
    ]);
    $record=[];//how to create record ??
    $recordSerializer->encodeRecord('user_topic',$avro,$record);

can anybody explain to me how to create record like in java SDK?