(PECL rdkafka >= 0.9.1)
This class represents a topic when using RdKafka\Producer. It can not be instantiated directly, RdKafka\Producer::newTopic() should be used instead.
$partition,$msgflags,$payload = NULL,$key = NULL,$opaque = NULL$partition,$msgflags,$payload,$key = NULL,$headers = NULL,$timestamp_ms = NULL,$opaque = NULL