(PECL gearman >= 0.6.0)
GearmanClient::addOptions — Add client options
Adds one or more options to those already set.
option|):
GEARMAN_CLIENT_GENERATE_UNIQUE, GEARMAN_CLIENT_NON_BLOCKING, GEARMAN_CLIENT_UNBUFFERED_RESULT or GEARMAN_CLIENT_FREE_TASKS.Always returns true.