(PECL gearman >= 0.5.0)
GearmanClient::setCreatedCallback — Set a callback for when a task is queued
$callback
) : boolSets a function to be called when a task is received and queued by the Gearman job server. The callback should accept a single argument, a GearmanTask object.
callbackA function to call
Retorna TRUE em caso de sucesso ou FALSE em caso de falha.