(PECL gearman >= 0.5.0) Create a GearmanWorker instance

(PECL gearman >= 0.6.0) Unregister a function name with the job servers

(PECL gearman >= 0.5.0) Add a task to be run in parallel

(PECL gearman >= 0.5.0) Get the last return code

(PECL gearman >= 0.5.0) Run a task in the background

(PECL gearman <= 0.5.0) Create a task (deprecated)

(PECL gearman >= 0.5.0) Set a callback for accepting incremental data updates

(PECL gearman >= 0.5.0) Set callback for job failure

(PECL gearman >= 0.5.0) Run a low priority task in the background

(PECL gearman >= 0.6.0) Send data for a running job