(PECL gearman <= 0.5.0)
GearmanJob::data — Send data for a running job (deprecated)
$data): boolSends data to the job server (and any listening clients) for this job.
注意:
This method has been replaced by GearmanJob::sendData() in the 0.6.0 release of the Gearman extension.
dataArbitrary serialized data.
成功时返回 true， 或者在失败时返回 false。