(PECL gearman >= 0.5.0)
GearmanClient::doLowBackground — Run a low priority task in the background
$function_name
   , string $workload
   [, string $unique
  ] )Runs a low priority task in the background, returning a job handle which can be used to get the status of the running task. Normal and high priority tasks take precedence over low priority tasks in the job queue.
function_nameLa funzione che il worker deve eseguire
workloadI dati serializzati da processare
uniqueUn ID unico che identifica un particolare task
The job handle for the submitted task.