(PECL gearman >= 0.5.0)
GearmanClient::addTaskLowBackground — Add a low priority background task to be run in parallel
$function_name
   , string $workload
   [, mixed &$context
   [, string $unique
  ]] )Adds a low priority background task to be run in parallel with other tasks. Call this method for all the tasks to be run in parallel, then call GearmanClient::runTasks() to perform the work. Tasks with a low priority will be selected from the queue after those of normal or high priority.
function_nameUma função registrada a executar
workloadDados serializados a processar
contextContexto da aplicação associado à tarefa
uniqueUm identificador único da tarefa
   A GearmanTask object or FALSE if the task could not be added.