(PECL gearman >= 0.5.0)
GearmanClient::doLow — Run a single low priority task
Runs a single low priority task and returns a string representation of the result. It is up to the GearmanClient and GearmanWorker to agree on the format of the result. Normal and high priority tasks will get precedence over low priority tasks in the job queue.
A registered function the worker is to execute
Serialized data to be processed
A unique ID used to identify a particular task
A string representing the results of running a task.